Linux Network Security - Page 49

Discover Network Security News

Understanding Digital Intruder Motivations to Enhance Network Security

data:image/svg+xml,%3Csvg%20xmlns=%22http://www.w3.org/2000/svg%22%20viewBox=%220%200%20100%20100%22%3E%3C/svg%3E

Hackers, crackers, carders and thieves are putting the squeeze on your network security. But what do you really know about them? What draws them to your network, and why do they do the things they do? Knowing the motivations of digital intruders helps you understand their behaviors, says Dr. Max Kilger, a social psychologist for the Honeynet Project. And understanding those behaviors can help you better protect your networks. . . .

Anthony Pell
Mar 03, 2004

Strategies To Protect Your Home Wireless Network From Threats

If you have a wireless network set up in your home, you might be inviting criminals to steal from you without even having to break in. Wireless internet or Wi-Fi is becoming big business and computer users are lining up to buy the equipment that will allow them to use their laptop computers just about anywhere. . . .

Anthony Pell
Mar 03, 2004

March 2023 Threats: Bagle and Netsky Worms Surge as Email Threats

Conventional wisdom claims March comes in like a lion and goes out like a lamb. But with new versions of the Bagle e-mail worm and a virulent new form of Netsky virus, March's arrival is looking more wormy than leonine. As of Monday, five new versions of Bagle appeared over the weekend as well as a new version of Netsky that is spreading rapidly on the Internet and generating a huge volume of virus-infected e-mail messages. The new virus versions use a variety of so-called "social engineering" techniques to fool users. Some new variants also hide in ZIP files to slip past anti-virus filters and into users' e-mail boxes, said Graham Cluley, a senior technology consultant at Sophos. . . .

Anthony Pell
Mar 02, 2004

Innovative Approaches to Mitigate Insider Threats in Network Security

"Firewalls don't stop everything," said Greg Stock, vice president of sales and marketing for Mirage Networks Inc. of Austin, Texas. And insiders are recognized as the largest source of security headaches. "In most cases, it is not malicious intent" that produces insider threats, it is carelessness, Stock said. . . .

Anthony Pell
Mar 01, 2004

DriverLoader 1.6 Enables Wireless On Intel Centrino Notebooks

You need to first install any major Linux distribution based on the 2.4 or 2.6 Linux kernel, then you can go right ahead and install DriverLoader 1.6, followed by a Windows NDIS driver, provided by your hardware vendor. Driver Loader 1.6 supports Intel's PRO/Wireless 2200BG card with 54Mbps 802.11g technology and the Wi-Fi Protected Access security protocol. . . .

Anthony Pell
Feb 26, 2004

Innovative Network Security Through Immune Response Simulation

Active Countermeasures models the human body's immune reaction to invasion by microbes. It runs a periodic vulnerability analysis based on the latest advisories from security monitoring organizations such as CERT, prioritizes the threats, scans the network for vulnerable machines, then automatically deploys a payload of prevention. . . .

Anthony Pell
Feb 25, 2004

Addressing Anti-Virus Concerns In Consumer Security Practices

One has to wonder how the anti-virus industry sleeps well at night. On one hand, it purports to serve the world by defending our computers and networks from any number of electronic critters and malicious code. On the other hand, sometimes its "cure" is worse than the problem its companies and products allegedly treat. Add to that a decades-old concern over business, market share, and publicity, and you have all the ingredients for a confused industry, product, and service. This situation regularly benefits the antivirus software industry and victimizes its customers. . . .

Anthony Pell
Feb 20, 2004

Investigating SSL And IPsec VPNs For Corporate Security

"Guardian Digital founder and CEO Dave Wreski shares his expertise with Processor.com readers on the security and performance benefits of using either SSL or IPSEC VPNs in the corporate environment." . . .

Anthony Pell
Feb 17, 2004

Safeguard Your Wireless Devices Against Cybersecurity Attacks

Wireless technology is exploding in popularity. But as KIRO 7 Eyewitness News Consumer Investigator Wayne Havrelly discovered, high-tech criminals love it even more than you do. . . .

Anthony Pell
Feb 16, 2004

Cisco EAP-FAST: New WLAN Security Protocol Against Brute Force Attacks

Cisco Systems Inc. has developed a new wireless LAN security protocol designed to defeat brute force dictionary attacks that capture a user's passwords, and it submitted a draft of the protocol to the Internet Engineering Task Force (IETF) on Monday. Cisco developed the new WLAN Extensible Authentication Protocol-Flexible Authentication via Secure Tunneling (EAP-FAST) to defeat dictionary attacks against unencrypted passwords in its earlier, proprietary Lightweight Extensible Authentication Protocol (LEAP). Cisco posted a security bulletin last August warning users that LEAP is vulnerable to such attacks. . . .

Anthony Pell
Feb 16, 2004

Exploring Traffic Sniffing Techniques and Network Security Risks

You are probably familiar with how easy it is to sniff traffic on a shared network and how traffic is sent. But I will explain a bit about how a hub works on a shared network as an introduction anyway. The way that traffic is handled on a shared network may be compared to the way mail is distributed during a mail call at military boot camp. One person stands at the middle of the room and shouts out the names on the letters as everybody stands around and listens for their own name to be called. . . .

Anthony Pell
Feb 16, 2004

Nokia Bluetooth Advisory: Address Book Theft Risk on Multiple Models

"We have developed a tool that allows us to connect to a number of Bluetooth-enabled phones and download all sorts of confidential information, such as address books, calendars and other attachments without going through the normal pairing, or handshaking, process between devices," said Adam Laurie, technical director and co-founder of A.L. Digital Ltd. in London. "In fact, we have been able to obtain this confidential data without giving users any indication whatsoever that an intrusion is taking place." . . .

Anthony Pell
Feb 13, 2004

MyDoom-A Email Worm Stops: 400,000 Machines Still At Risk

MyDoom-A is programmed to stop spreading today, marking the end of arguably the worst email-borne viral epidemic to date. MessageLabs, the email filtering firm, blocked the virus 43,979,281 times in the two weeks since its first appearance in late January. At the height of the epidemic, one in 12 emails the firm scanned were viral. . . .

Anthony Pell
Feb 12, 2004

Preventive Measures Against Contemporary Network Threats

Unless you've been tinkering with the rovers on Mars and are just now returning to this planet, you've likely had your fill of the stories of the latest worm. And unless you're running SCO's Web site, you probably have had little more than inconvenience as a result of that fast spreading worm.Sure, it slowed down the Internet and generated prodigious quantities of e-mail traffic, but if you had already protected your enterprise properly, the biggest impact you felt was the constant stream of news stories in the mainstream media. We don't want to inflict any more of that on you, so I'm not going to write about the recent worm. It's already history, and you've got the satisfaction of knowing that your enterprise got through the epidemic just fine. That's important, because it's easy to focus on the issue of the moment, and lose sight of the fact that in spite of the worm, other security threats are more important. . . .

Anthony Pell
Feb 12, 2004

Secure Your Home Network: Strategies Against Cyber Threats

The problem with having the signal broadcast though is that it is difficult to contain where that signal may travel. If it can get from upstairs to your office in the basement then it can also go that same 100 feet to your neighbors living room. Or, a hacker searching for insecure wireless connections can get into your systems from a car parked on the street. . . .

Anthony Pell
Feb 12, 2004

Overcoming SSL VPN Deployment Obstacles for End Users Effectively

Amidst the cacophony about VPNs and whether IPsec or SSL is the better solution, and which vendor has done the most to satisfy the journalists and analysts, one "minor" issue seems to be falling by the wayside - You the user - Irrelevant maybe to most vendors, but nevertheless a problem they need to resolve in order to achieve those quarterlies! . . .

Anthony Pell
Feb 11, 2004

Pittsburgh International Airport's Free Wi-Fi Access for Travelers

The convenience of wireless access typically comes with a high price tag. But that's changing. Some airports and hotels have begun installing 802.11 Wi-Fi networks and letting travelers use them for free. Pittsburgh International Airport, which recently completed deployment of a free wireless LAN in its food court, is expanding it to all gates. "We are the only airport in the country, and one of two in the world, to offer this as a free service to the traveling public," says Tony Gialloreto, the airport's IT manager. "It's a real asset." . . .

Anthony Pell
Feb 11, 2004

Challenges in Network Security: Defense Strategies Against Intrusions

Day and night, the war of attrition rages in the beleaguered world of network security. Defenders throw up firewalls, download patches, and scramble to fend off the hundreds of thousands of attempted intrusions into worldwide enterprise data. . . .

Anthony Pell
Feb 11, 2004

WPA Certified Products: 175+ Wireless Devices Secure Wireless Access

The Wi-Fi Alliance announced that over 175 wireless products from more than 40 leading manufacturers received the long awaited Wi-Fi Protected Access (WPA) security certification. The infamous Wired Equivalent Privacy (WEP) was proved to be fundamentally insecure and this finding caused a really negative "marketing" campaign for WLAN adoption. WPA comes to the rescue as a security replacement for WEP. It is recommended that WPA be enabled in wireless LAN applications where data security is a concern, as it has been proven to be a very secure and easily implemented security solution. . . .

Anthony Pell
Feb 09, 2004

Custom Firmware Exposes Eavesdropping Threats in Cable Modems

A small and diverse band of hobbyists steeped in the obscure languages of embedded systems has released its own custom firmware for a popular brand of cable modem, along with a technique for loading it -- a development that's already made life easier for uncappers and service squatters, and threatens to topple long-held assumptions about the privacy of cable modem communications. The program, called Sigma, was released in its final version last month, and has reportedly been downloaded 350 to 400 times a day ever since. It's designed to be flashed into the non-volatile memory of certain models of Motorola's Surfboard line, where it runs in parallel with the device's normal functionality. It gives users almost complete control of their cable modem -- a privilege previously reserved for the service provider. . . .

Anthony Pell
Feb 09, 2004

Community Poll

More Polls