Few words on Wireless network topology. Each Wireless network has two major components, either stations (STA) or access points (AP). Wireless network operates in one of two modes: ad-hoc (peer-to-peer) or infrastructure mode. In the ad-hoc mode each client (STA) communicates . . .
The newest variant, dubbed "Mighty," exploits the same Linux Web server flaw that other versions of the Slapper worm have used to slice through the security on vulnerable servers. Russian antivirus company Kaspersky Labs said in a release Friday that more . . .
This article is the fourth in a series that is designed to help readers to assess the risk that their Internet-connected systems are exposed to. In the first installment, we established the reasons for doing a technical risk assessment. In the . . .
Following the theft of its key customer contact lists, NCTPTI Inc. (Name Changed To Protect The Innocent) hired my company to perform a security assessment. We found the client's wireless local area network (WLAN) unsecured and accessible from any area within . . .
The FBI is urging network security experts to be on guard against cyber protests timed to coincide with planned demonstrations surrounding this week's meetings of the International Monetary Fund and World Bank in Washington, D.C. . .
Security managers worth their salt are arming their companies with arsenals of technology such as firewalls and encryption. But it's the wise ones like Matthew Speare who know that it also takes well-trained foot soldiers to fight the constant information security . . .
Barely 24 hours after the Slapper B worm started to show up on antivirus monitoring stations, a new variant has cropped up. According to security specialist ISS, Slapper C has infected 1,500 servers already and is spreading, although a source . . .
Network and system security scanning is the most practical way to find out what the vulnerabilities and threats are on and for your systems and networks. All reputable providers of this service and associated products offer a comprehensive report that describes . . .
This week marks the first anniversary of the Nimda virus attack, an event that may have driven more corporate IT security changes during the past 12 months than the Sept. 11 terrorist attacks did. . .
Someone, somewhere close by, is hacking into your wireless LAN, but it might not be malicious. In fact, the perpetrator may be totally unaware he or she has invaded your system. In fact a series of system defaults which encourage . . .
Security management will evolve into three functional areas: user, event, and configuration management. User management aggregation (identity management and provisioning) will mature rapidly (2004). Security event management consoles (collecting intrusion detection system, firewall, and host events) will remain out of the . . .
The first computer networks were used to send e-mails and share files and printers between researchers and corporate employees. In such a scenario security was not given much thought. Now the computer networks (especially the Internet) are used by millions for banking, shopping and filing their tax returns, and network security has become a major problem. Network security can be divided into four areas.. . .
A local consulting firm launched a controversial Web site yesterday that shows gaping security holes in hundreds of wireless networks throughout the downtown core, including many in the financial district and some government and university areas. . . .
We've said it before and we'll say it again: You will never have a totally secure network. The best you can hope for is that your security strategies will minimize exposure to attack, and if you are hit, the damage can . . .
Although most companies today have improved security on their data networks, thus cutting down on white-collar crime and hack attacks, too few have paid enough attention to their PBX system. The PBX remains a potentially huge back door problem for data . . .
'Warspammers' are taking advantage of unprotected wireless LANs to send out millions of junk emails. The proliferation of insecure corporate wireless networks is fuelling the growth of drive-by spamming, a security expert warned on Thursday. . .
In At last, real wireless LAN security, we [ZDNet] discussed the new 802.1x/EAP combination that allows you to manage and distribute encryption keys on a user- and session-level basis. Now we'll describe what it takes to actually . . .
Software that generates a blizzard of bogus wireless network access points could bamboozle hackers trying to access corporate and home computer networks. This would stop them stealing wireless surfing time and exploring corporate wireless networks, say the two US computer programmers . . .
If you're running a wireless LAN on the 802.11 standards, you may think your organization is secure. Think again. Joe User can drive to the local computer store, buy a wireless access point for less than $100, and be free from . . .
We were all shocked by the tragic events of September 11, 2001. In the non-stop stream of news and analysis one phrase was continuously repeated - "terrorist network." Everyone talked about this concept, and described it as amorphous, invisible, resilient, and . . .
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