Network Security 101

As more people are logging onto the Internet everyday, Network Security becomes a larger issue. In the United States, identity theft and computer fraud are among the fastest rising crimes. It is important to protect your network and ensure the safety of all computers and users in that network.

What is a Network?

In order to fully understand network security, one must first understand what exactly a network is. A network is a group of computers that are connected. Computers can be connected in a variety of ways. Some of these ways include a USB port, phone line connection, Ethernet connection, or a wireless connection. The Internet is basically a network of networks. An Internet Service Provider (ISP) is also a network. When a computer connects to the internet, it joins the ISP's network which is joined with a variety of other networks, which are joined with even more networks, and so on. These networks all encompass the Internet. The vast amount of computers on the Internet, and the number of ISPs and large networks makes network security a must.

Common Network Security Breeches

Hackers often try to hack into vulnerable networks. Hackers use a variety of different attacks to cripple a network. Whether you have a home network or a LAN, it is important to know how hackers will attack a network.

One common way for a hacker to wreak havoc is to achieve access to things that ordinary users shouldn't have access to. In any network, administrators have the ability to make certain parts of the network "unauthorized access." If a hacker is able to gain access to a protected area of the network, he or she can possibly affect all of the computers on the network. Some hackers attempt to break into certain networks and release viruses that affect all of the computers in the network. Some hackers can also view information that they are not supposed to see.

Destructive Attacks

There are two major categories for destructive attacks to a network. Data Diddling is the first attack. It usually is not immediately apparent that something is wrong with your computer when it has been subjected to a data diddler. Data diddlers will generally change numbers or files slightly, and the damage becomes apparent much later. Once a problem is discovered, it can be very difficult to trust any of your previous data because the culprit could have potentially fooled with many different documents.

The second type of data destruction is outright deletion. Some hackers will simply hack into a computer and delete essential files. This inevitably causes major problems for any business and can even lead to a computer being deemed useless. Hackers can rip operating systems apart and cause terrible problems to a network or a computer.

The Importance of Network Security

Knowing how destructive hackers can be shows you the importance of Network Security. Most networks have firewalls enabled that block hackers and viruses. Having anti-virus software on all computers in a network is a must. In a network, all of the computers are connected, so that if one computer gets a virus, all of the other computers can be adversely affected by this same virus. Any network administrator should have all of the essential files on back up disks. If a file is deleted by a hacker, but you have it on back up, then there is no issue. When files are lost forever, major problems ensue. Network security is an important thing for a business, or a home. Hackers try to make people's lives difficult, but if you are ready for them, your network will be safe.

Robert Flanglin is very interested in security and enjoys writing about network security. Robert Flanglin also writes for the Network Security Journal ( http://www.networksecurityjournal.com ).

In The News:

After CBI Removal, Rakesh Asthana Takes Over As Aviation Security Head  NDTV NewsA day after the government curtailed his tenure in the CBI as Special Director, Rakesh Asthana, who had a bitter fight with ousted agency chief Alok Verma, was ...
'Collection #1' data breach is just the beginning, cyber security experts warn  The IndependentThe vast data breach that might be the biggest ever posted on the internet is just the beginning, cyber security experts have warned. The trove of sensitive ...
In feud with Pelosi, Trump yet again flouts security protocols  Washington PostThe speaker's office said Trump's letter revealed her congressional delegation's trip to Afghanistan, making it unsafe for her to travel.
Linux-Targeting Cryptojacking Malware Disables Cloud-Based Security Measures: Report  CointelegraphNews. A new cryptojacking malware has the ability to disable cloud-based security measures to avoid detection on Linux servers, research by information ...
773M Password 'Megabreach' is Years Old  Krebs on SecurityMy inbox and Twitter messages positively lit up today with people forwarding stories from Wired and other publications about a supposedly new trove of nearly ...
Avoid Long Security Lines With the TSA's App  LifehackerNo one wants to wait in an hour-long security line, but it's always a possibility—now more than ever. One app designed to show you wait times may help save ...
Could this be the end of airport security checks?  Kiwi.comNew camera technology developed by Cardiff University might mean the end of airport security checks as we know them, with only bags needing to be X-rayed.
Explosion At Srinagar's High-Security Lal Chowk Damages Shops, Vehicles  NDTV NewsTerrorists carried out two grenade attacks on security forces in Kashmir, including one in the Lal Chowk area of the city, on Friday, police said.
Employee's firing prompts Baltimore IT security review  Fox BaltimoreA Baltimore employee was found with hacking tools on his city computer, prompting the mayor to order a security review. News outlets report that Inspector ...
Future of airport security on show in London  BBC NewsA shoe scanner that works on passengers queuing at airport security is on show in London.
Thieves who stole security camera that caught them in the act have been arrested, police say  KMOV.comSOUTH ST. LOUIS (KMOV.com) -- Police in South City say two suspects who stole a home security camera and were caught in the act on that very camera have ...
Senate GOP blocks bill to reopen Homeland Security | TheHill  The HillSenate Republicans blocked legislation on Friday that would have temporarily reopened the Department of Homeland Security (DHS).
Bi-State's new leader ousts Metro security chief, top assistant  STLtoday.comMetro Transit's top two security officials were ousted Friday amid what the operation's new chief executive said is an effort to coordinate better with local police ...
White House web security has lapsed because of the shutdown  QuartzThe security certificates authenticating more than 130 US government websites, including a subdomain at whitehouse.gov, have expired during the federal ...
Pentagon Confirms Climate Change Is A National Security Threat, Contradicting Trump  HuffPostThe military walks a fine line between the White House's official climate denialism and the stark realities of a warming planet.
Home security systems can help investigators solve cases  WHNT News 19ARAB, Ala. -- In the last year or so, police have seen an increase in home security systems and it's helping solve crime. A picture from a doorbell camera at a ...
Private security guards to be issued with guns in six months  The StandardPrivate Security Regulatory Authority's Fazul Mahamed with Kenya National Private Security Workers Union officials after a meeting in Nairobi yesterday.
CNN's King questions taxpayers funding Karen Pence's security while teaching | TheHill  The HillCNN anchor John King asked on Friday if it matters that taxpayer dollars are being used to pay for Karen Pence's housing and Secret *Service* protection if the ...
Telus, Huawei await feds' next move on telecom security concerns  Vancouver SunHuawei has been a key supplier to parts of Telus' wireless network, but not at the core. Government is evaluating whether to exclude Huawei from 5G networks.
Cisco CEO Robbins On Tariffs, Security, And The State of The Global Tech Industry  CRNCisco CEO Chuck Robbins took to the airwaves to discuss U.S.-China trade, cyber security, and what the self-proclaimed 'eternal optimist' thinks could ...
Beat Airport Security Lines | Government Shutdown  ConsumerReports.orgWorried about long security lines at the airport due to the federal government shutdown? Use these strategies from Consumer Reports to beat the lines so you ...
Chief Information Security Officer Priorities For 2019  ForbesThe Chief Information Security Officer supports the business by reducing risk. This isn't easy when faced with the erosion of traditional perimeters, new threats, ...
SC Orders 24x7 Security to Women Who Entered Sabarimala, Refuses to Wade Into Purification Row  News18A bench comprising Chief Justice Ranjan Gogoi and justices L N Rao and Dinesh Maheshwari said it was only going into the aspect of security to the two ...
PICS: Security guard who intervened in boy's assault at Somerset West mall honoured  News24The security guard who prevented a 5-year-old child from being seriously injured in a stabbing incident at Waterstone Village shopping centre in Somerset West ...
Senator requests FBI investigate whether Homeland Security Sec. Nielsen lied about family separation  KGUNSen. Jeff Merkley (D-Oregon) has asked that the FBI open an investigation into Homeland Security Kirstjen Nielsen committed to determinte whether she ...
Fortnite security flaw exposed 80 million accounts  FOX 59 IndianapolisCARY, N.C. – A major security flaw in a popular video game exposed millions of players to hacking risks, according to Forbes. More than 80 million players ...
Family of teen who says school security guard beat him to sue school district  WPLG Local 10The family of a 14-year-old boy who claims he was choked and punched by a security guard at Miami Norland Senior High School in Miami Gardens is planning ...
Security guard shoots, kills man on Fremont Street  FOX5 Las VegasLAS VEGAS (FOX5) - A security guard shot and killed a man near a bus stop on Fremont Street and Casino Center Boulevard Thursday afternoon, according to ...
A national security reset is in serious order | TheHill  The HillWe need to be more like President Washington, not Woodrow Wilson, and return to our roots as a country and ask ourselves if our military actions in the Middle ...
GOP Rep. Will Hurd calls wall "least effective" border security measure  CBS NewsHurd, from Texas, is the only Republican member representing a district along the southern border.
WATCH | Security guard robbed of gun at busy Soweto shopping centre  TimesLIVEPolice are appealing to residents of Soweto who might have information that could lead to the arrest of four men who robbed a security guard of his firearm in ...
Bitcoin SV News: BSV is Prioritizing Scaling, Security, Secure-Instant Transactions, and Stability  Invest In BlockchainBitcoin SV, at just 2 months old, is already pulling away from Bitcoin Cash's shadow with big plans ahead in 2019. According to Steve Shadders, the Technical ...
Shutdown could affect security clearances  Marketplace.orgThe partial government shutdown could start affecting federal workers' credit scores, if they fall behind on bills because they're not getting paid. If their credit ...
State Fire Marshal cracking down on security alarm scams  WTOKJACKSON, Miss. (WTOK) - The Mississippi State Fire Marshal Office is cracking down on dishonest security alarm sales. Multiple people have called the ...
Researchers identify malware that can dismantle cloud security protections | TheHill  The HillA team of researchers have identified a new kind of malware that they say can remove cloud security products.
The Millions Silicon Valley Spends on Security for Execs  WIREDFacebook told investors it expects to spend $10 million annually on security for CEO Mark Zuckerberg.
VA security staff compromised safety and Shulkin violated ethics rules, oversight report says  Washington PostThere were inadequate threat assessments, the Veterans Affairs inspector general report found, and “insufficient written operational procedures that resulted in ...
Alarming! Drug barons taking over NACOB – Security expert  GhanaWebSecurity expert, Adam Bonah has indicated there is a looming danger in the country as some drug cartels are working tirelessly to hijack Ghana's Narcotics ...
WOTR Podcast: No Good, Very Bad Ideas in National Security  War on the RocksBad ideas. How much trouble do they cause in national security? How do they disrupt or hinder the protection and advancement of American interests? Where.
Mayor Perkins uses plain clothes officers for security  KTBSShreveport has a new mayor, and a new security detail. But you may not see it.
'Mama will fight for you': Mother of security guard killed by Midlothian police officer speaks out  WLS-TVBeatrice Roberson is turning her pain into action. Her son, Jemel Roberson, was killed by a Midlothian police officer in November. After mourning for weeks, the ...
UPDATE: Police say man shot by bus security guard near Fremont Street  KTNV Las VegasPolice say a man was shot by a security guard in the 120 block of Fremont Street around 2 p.m..
Tapper: Trump violated decades of security protocols  CNNCNN's Jake Tapper says President Donald Trump violated decades of security protocols by announcing House Speaker Nancy Pelosi's trip to Afghanistan.
Some Brown School parents want better communication and security  WAVE 3A gun found right next door to the J. Graham Brown School still has some parents feeling uneasy. While the school was checked, some parents said security and ...
As the Government Shutdown Drags on, Security Risks Intensify  WIREDFrom potential nation state hacks to a brain drain, the shutdown has done nothing good for cybersecurity.
Supreme Court fires security guard who abandoned post  ABS-CBN NewsThe Supreme Court dismissed a security guard stationed at the Court of Appeals and forfeited all his retirement benefits for abandoning his post, the high court ...
Police arrest, accuse man of pointing gun at security guard in French Quarter bar, police say  NOLA.comAndrew Breaux was booked with aggravated assault, negligent carrying of a concealed weapon, possession of firearm inside of an alcoholic beverage outlet ...
Breaking the impasse on shutdown, border security | TheHill  The HillA bipartisan commission to study what to do at the border would provide a face-saving way out of the current impasse.
Security guard killed outside Booby Trap, notorious Florida strip club  WKMG News 6 & ClickOrlandoPolice say a shooting at a notorious strip club in Miami has left one security guard dead and another wounded.
After May riots, state to close maximum-security prison  STLtoday.comJEFFERSON CITY • Eight months after hundreds of inmates rampaged through a short-staffed maximum-security prison in northwest Missouri, the facility is ...
Airport security: The future could simply involve walking through a corridor  The IndependentMost passengers say that the worst part of the airport experience is the security checkpoint, in which travellers are temporarily transformed from valued ...
Cash-in-transit security guards caught with R2.6-million in looted money [photos]  The South AfricanThese two cash-in-transit (CIT) security guards rank high up there with the dumbest criminals in the world. We do not condone crime but if you are going to do it, ...
Mexican airline addresses border security in 'DNA discount' ad  WTHR(WTHR) — The more Mexican you are, the bigger discount you get. That's the premise of the advertisement recently released by Mexico's largest domestic ...
Security services prepared for Trump congressional address: DHS  ReutersWASHINGTON (Reuters) - The Department of Homeland Security and the U.S. Secret *Service* are prepared for the annual State of the Union address, Homeland ...
Syria Kurds reject 'security zone' under Turkish control  Economic TimesQAMISHLI, SYRIA: Syria's Kurds on Wednesday rejected a US proposal for a "security zone" under Turkish control along the Syrian side of the two countries' ...
Hamilton to keep bylaw ban on security cameras facing the street  TheSpec.comOntario's privacy commissioner is holding up Hamilton's rare bylaw as a “blueprint” for other cities.
How to secure, protect, and completely lock down your Android phone  PCWorldWhether you just got a new Android phone or have had one for a while, it's probably not as secure as it could be. Here's how to lock it down.
Apple spent $310K on Tim Cook’s personal security in 2018, here’s how that compares to other CEOs  9to5MacEarlier this month, Apple filed a proxy statement with the SEC in which it was revealed the company spent $310,000 on personal security for Tim Cook in 2018.
Exclusive: Offensive Security Names New CEO; Former No. 2 at HackerOne, Lynda  FortuneNing Wang is the new chief executive officer of Offensive Security, a cybersecurity training business best known for its popular certification programs which teach ...
How to digitally secure your smart home  Popular ScienceIf you've filled your house with internet-connected gadgets, you need to make sure nobody can access them. Here's how to secure your smart home.
Dem caucus meeting roiled by talk of Super Bowl security amid government shutdown  Fox NewsA House Democratic Caucus meeting was roiled this morning when one representative floated the possibility that the ongoing partial federal government ...
Drunk Security Guard Attacks Woman With Knife In Delhi's Dwarka: Police  NDTV NewsA 24-year-old woman was injured after she was allegedly attacked with a knife by a drunk man who worked as a security guard in the Dabri area of Dwarka ...
Twitter 'very sorry' for security flaw that made private tweets public  Fox NewsTwitter has discovered a long-running security flaw that exposed private tweets for some users of the platform on the Android operating system.
No, you can’t hide a security camera in your Airbnb rental photos and call that 'disclosure'  MashableAirbnb is apologizing to one of its users after dismissing his privacy complaint. The user had discovered undisclosed security cameras inside his rental.
Agrizzi expected to return to Zondo Commission under heightened security  EWNYesterday, Angelo Agrizzi told the commission that he fears for his life, saying that he spotted a former cop and current employee of Bosasa on the premises of ...
Person of 'national security concern' was accidentally granted permanent residency  CBC NewsTwo federal departments were forced to make changes after a person of “national security concern” was granted permanent residency “due to a series of failures ...
Security Waits Top an Hour at Atlanta Airport Amid Shutdown  BloombergSome airport security lanes in Atlanta, Washington and Houston were closed as the Transportation Security Administration continued to grapple with more ...
Box hires former SAP exec as chief information security officer  TechCrunchBox announced today that it has hired Lakshmi Hanspal to be the company's new chief information security officer (CISO). She boasts 20 years of security ...
What Financial Services Executives Need To Know About Data Security  ForbesThe financial services industry experiences 35% of all data breaches, earning it the unflattering title of the most-breached sector. It's easy to understand why.
Ring Security Cam Snooping, Location Tracking, and More Security News This Week  WIREDA German hack confession, unencrypted government sites, and more security news this week.
Ring security camera catches man licking the doorbell for hours  Digital TrendsSecurity cameras can capture all kinds of things that happen while you're gone. A family in Salinas, California had their Ring camera capture something pretty ...
Security heightened in Haryana, Punjab ahead of Ram Rahim's sentencing  Economic TimesSecurity was heightened in parts of Haryana and Punjab ahead of the sentencing of convicted Dera Sacha Sauda sect chief Gurmeet Ram Rahim Singh and his ...
Body of security guard found hanging in Delhi  Times of IndiaNEW DELHI: Body of a security guard was found hanging inside a school premises in Swaroop Nagar of outer north district on Thursday morning.
Applause for Film "Uri" Shows How Much People Respect Security Forces: Piyush Goyal  News18The film, which was released on January 11, is based on the 2016 surgical strikes by the Indian Army on terror launch pads in Pakistan-administered Kashmir.
Turkey deports Dutch journalist on security grounds, cites Dutch intelligence  DutchNews.nlTurkey has deported a Dutch journalist who worked for the Financieele Dagblad, Trouw and One World, for 'security-related reasons'. Ans Boersma, 31, was ...
EY collaborates with IBM to launch Security Operations Centre in India  Economic TimesNEW DELHI: With the aim of detecting, responding and addressing advanced cyber-attacks and risks encountered by organizations today, EY has collaborated ...
Security flaw found in ES File Explorer app (Update: Patch incoming)  Android AuthorityIf you use the popular Android app ES File Explorer, be careful: as of right now, the app has a major security vulnerability. However, a patch is on the way.
Rise Above The Noise In Enterprise Security  ForbesThe tech industry is a hype machine. It's not just around smart devices and virtual reality glasses and self-driving cars, it's enterprise technology too. In fact, we ...
National security advisory board's aim is to spread 'security understanding'  Economic TimesIt was decided that NSAB members would try to spread wider public understanding of Indias national security challenges, perspectives and policies.
Security under scrutiny at Sentinel High School forum after ammo clip dropped in hallway  The MissoulianFour days after a dropped ammunition clip prompted a lockdown and evacuation at Sentinel High School, its response and future plans faced scrutiny.
Chinese dissident’s daughter ‘bullied’ by airport security  South China Morning PostA Canadian woman whose father is a dissident jailed in China was briefly detained and “bullied” by security officials while transiting through Beijing's main ...
OxygenOS beta 23/25 for the OnePlus 5/5T brings January security patches and Google Duo integration  XDA DevelopersNot a month has passed since the last OxygenOS update and OnePlus is already offering the next beta update for the OnePlus 5 and OnePlus 5T.
Security Report Gives A or A- Rating to 16% of Major Crypto Exchanges, None Get A+  CointelegraphNews. The latest Exchange Security Report from independent analysts at ICORating has given 16 percent of the world's biggest crypto trading platforms an A ...
Tesla’s reward for finding security bugs: Model 3  LivemintTesla, which can ship updates to customers via over-the-air software upgrades, launched a 'bug bounty' program in 2014 to reward researchers who uncover ...
MasterCard Adds Security Measure to Prevent Automatic Billing After a Free Trial Finishes  News18Your online pre-subscription free trials of an app or *service* are about to get a whole lot simpler. Credit card company MasterCard has announced that it is ...
Mum's Home Security Camera Appears To Capture Ghost Of Her Son  LADbibleA mum in the US claims to have been left stunned after her home security system captured what appears to be the ghost of her son.
Swiss Crypto Industry Leader Says Next Crypto Wave Will Be Stablecoins, Security Tokens  CointelegraphNews. Bitcoin Association Switzerland board member Luzius Meisser says he believes the next wave of crypto innovation will focus on stablecoins and security ...
WATCH: State capture inquiry adjourns after security threat  eNCADeputy Chief Justice Raymond Zondo postponed Thursday's proceedings following concerns over security.
Over 140 International Airlines Affected by Major Security Breach  BleepingComputerPotential attackers could view and change private information in flight bookings made by millions of customers of major international airlines because of a ...
In a first, Haryana gets cyber security portal  The Indian ExpressIn a first, Haryana Finance Minister Captain Abhimanyu launched a Cyber Security portal at the National Summit on Digital Innovation and Cyber Security in ...
Genesis Partners With Blockchain Security Firm BitGo to Provide Direct Custody Operations  CointelegraphBlockchain security firm BitGo has partnered with Genesis Global Trading to enable direct trading on its custody *service*.
Security camera captured image of deceased son's spirit, Atlanta mother says  Fox NewsA grieving Atlanta mother said a spirit that looked like her deceased son was captured in her home's security camera, according to The Atlanta ...
Employees sacked, CEO fined in SingHealth security breach  ZDNetTwo employees have been sacked and five senior management executives, including the CEO, were fined for their role in Singapore's most serious security ...
Isro to launch exclusive satellite to help MHA secure borders  Times of IndiaIndia News: NEW DELHI: Indian Space Research Organisation (Isro) will soon launch exclusive satellite that will help home ministry manage borders more ...
MCSO K9 unit chosen for Super Bowl security detail  13WHAM-TVAtlanta, Ga. /Rochester, N. Y. – On Super Bowl Sunday, a local K9 unit will be among the ranks of law enforcement and security officials keeping fans safe.
Delayed salaries at Jet Airways can pose a security risk: DGCA  Economic TimesNEW DELHI: Delayed salary payments at Jet Airways have the potential to pose a safety risk, the Directorate General of Civil Aviation (DGCA) said in an audit of ...
Windows 7 Only Has One Year of Security Patches Left  How-To GeekMicrosoft will stop supporting Windows 7 with security updates on January 14, 2020. It's like Windows XP all over again—but much worse. Many more people ...
2019 Android Security Trends  XDA DevelopersGoogle's Android has recently been crowned as the world's most popular operating system. It has become the first in the worldwide operating systems internet ...
Cryptopia cryptocurrency exchange pulled offline due to security breach  ZDNetReports suggest that cryptocurrency may have been lost by the exchange.

Make Money Online - Defend Against The Latest Scam

First, let's do a little recap'. As I stated in... Read More

Email Hoaxes, Urban Legends, Scams, Spams, And Other CyberJunk

The trash folder in my main inbox hit 4000 today.... Read More

Spyware Removal

Spyware SolutionProbably Today's Biggest Computer Problem. You Suffer Without Knowing... Read More

Dont Get Hacked - A Guide to Protecting Your Business from Thieves

You've seen it in the news - 40 million credit... Read More

Instant Messaging ? Expressway for Identity Theft, Trojan Horses, Viruses, and Worms

Never before with Instant Messaging (IM) has a more vital... Read More

Pharming - Another New Scam

Pharming is one of the latest online scams and rapidly... Read More

How To Cover Your Tracks On The Internet

Every single time you access a website, you leave tracks.... Read More

Parental Control - Dangers To Your Child Online & Internet Child Safety Tips

Did you know...? 1 in 5 children who use computer... Read More

Traditional Antivirus Programs Useless Against New Unidentified Viruses!

Every now and then you can read about a new... Read More

Protect Your Little Black Book

The movie Little Black Book features a young woman, Stacy,... Read More

The 5 Critical Steps to Protecting Your Computer on the Internet

Spyware, viruses and worms... oh my!If you are connected to... Read More

Social Engineering: You Have Been A Victim

Monday morning, 6am; the electric rooster is telling you it's... Read More

3 Things You Must Know About Spyware

1)Spyware is on your system. Like it or not, statistically... Read More

Viruses, Trojans, and Spyware - Oh My!

Have you ever had to call Symantec or McAfee to... Read More

Consumers: Shop Online and Get Information Safely

Do you really have to know how feeds work? Not... Read More

An Open Door To Your Home Wireless Internet Network Security?

This is not some new fangled techno-speak, it is a... Read More

Web Conferencing Readers - So What Do We Do with the PAYPAL SPAMMER

From: "Paypal Security" Subject: New Security Requirements Date: Tue, 26... Read More

Lets Talk About Antivirus Software!

Nowadays more and more people are using a computer. A... Read More

Internet Privacy

Over the past few years as the internet has become... Read More

How to Protect Your Child from the Internet

When the Internet first came about, it was realized it... Read More

Information Security for E-businessmen: Just a Couple of Ideas

If you constantly deal with bank or electronic accounts, it... Read More

Spyware Programs Are Out To Get You!

The average computer is packed with hidden software that can... Read More

7 Ways to Spot a PayPal Scam E-Mail

Paypal is a great site and is used by many... Read More

If You Steal It, They May Come!

Business on the internet is getting down right shameless. This... Read More

Reclaim Your PC from the Internet Spies

Viruses are, however, not the only malicious software programs out... Read More