Showing posts with label Citadel Information Security Guides. Show all posts
Showing posts with label Citadel Information Security Guides. Show all posts

Wednesday, December 1, 2010

Personal Guide to Staying Safe Online

Cyber criminals want your bank account and credit card numbers so they can take your money and use your credit while stiffing you with the bill. They want your social security number so they can apply for credit in your name, stealing your identity. They have even begun selling stolen medical insurance information.

Cybercriminals steal your sensitive personal information by taking control of your computer. This control also lets them install rogue programs on your computer, turning your computer into a zombie under their control—the cyber-equivalent of Night of the Living Dead. Even reasonably well-protected computers can be turned into computer-zombies if users unwittingly click on Internet links, visit sabotaged web-sites or open attachments on emails.

The consequences of having your computer turned into a zombie under the control of a cyber criminal can be devastating. Just ask the owner of the escrow company  in Redondo Beach after cyber criminals withdrew $400,000 from her bank account using the firm’s on-line bank id and password which they stole after turning her computer into a zombie. You can read about her and other victims of on-line bank fraud indexed under Financial Systems Security on our blog:  http://blog.citadel-information.com.

Online bank fraud is just one of the ways cyber criminals can make money from turning your computer into a computer-zombie. Besides stealing your credit card numbers and the login credentials to your online bank and brokerage accounts, these cyber criminals also display annoying pop-up ads on your computer, send spam from your computer and use your computer to commit a wide variety of sophisticated computer crimes.

Cybercriminals take control of your computer by exploiting four weaknesses:
  1. Every computer program running on your computer has subtle programming errors (vulnerabilities) that cybercriminals exploit to take control of your computer.
  2. Legitimate internet web sites often fail to prevent cybercriminals from installing malicious programs on their web sites. When you visit these sites, these malicious programs silently install Trojan horses and other malware on your computer.
  3. Default settings for many computer programs make it easy for cyber criminals to take control of your computer.
  4. Users often don’t know what they need to do to minimize the dangers and risks of cybercrime, particularly the need for defense-in-depth.
Defense Strategy 1: Keep Cybercriminals Off Your Computer
  • Keep Systems Patched: Software manufacturers issue program updates containing patches to fix known vulnerabilities. Set Microsoft Windows and Office to automatically update. Manually update other programs like Adobe Acrobat, iTunes, Flash and Java. We list available updates for some of the more common programs in our Weekly Patch and Vulnerability Report, available on our blog:  http://blog.citadel-information.com.
  • Limit Exposure: Create separate accounts for all family members. This is done in the Control Panel. Set account type to “Limited” unless the account needs to run programs as “Administrator.” This will make it harder for cybercriminals to install malware on your computer.
  • Protect Your Desktop: Install a reputable antivirus / antispyware product & keep it up-to-date. If you’re technical, run Firefox with the NoScript add-on inside of sandboxie and install a host intrusion prevention system.  Sophisticated cybercriminals can get past basic antivirus/antispyware software. Antivirus is necessary. It is not sufficient.
  • Secure Your WiFi: If you have a wireless network, encrypt it with WPA2 encryption. Otherwise anyone near you can eavesdrop on your communications and piggy-back on your connection.
  • Stay Away from P2P Networks: Don’t run Peer-to-Peer or other file sharing programs, such as Kazaa, Limewire or BitTorrent. These networks provide strangers access to your computer.
  • Beware of Scams, 1: Don’t click on web-site ads or pop-ups offering to scan your computer for free. Cybercriminals love to take advantage of people’s fear of getting a virus. Instead of scanning your computer, these programs will infect it. Always be wary.
  • Beware of Scams, 2: Don’t open unusual or unexpected attachments, not even from people you know. It’s easy to send an email so it looks like it came from someone else. Also, how do you know your friend’s computer hasn’t been taken over? Always be wary.
  • Beware of Scams, 3: Don’t follow links in unfamiliar or unusual emails, especially those requesting your user names, passwords, or financial information. A SPAM filter can help you avoid these e-mails but you must be on guard for emails that get past your SPAM filter. Always be wary.
Defense Strategy 2: Be Careful With Your Financial Information On-Line
  1. Don’t send your Social Security Number, bank account numbers or credit card numbers in unencrypted email.
  2. Use different strong passwords [8+ characters, upper & lower case, numbers, characters] for all eCommerce websites. Use Password Safe or RoboForm to securely manage online passwords.
  3. Only buy on-line from merchants using SSL, which means the website address begins with https://. Look for the “lock” on the title bar of Internet Explorer or Firefox’s lower right corner.
  4. Use a credit card rather than a debit card when shopping on-line. Link PayPal to your credit card, not your bank account. Federal law limits your credit card exposure to $50. There is no corresponding limit if you use a debit card (even though many banks cover debit card fraud).
Defense Strategy 3: Protect Your Information Away from Home
  1. Keep your laptop with you at all times. Never leave it unattended in your car.
  2. Keep WiFi and Bluetooth turned off except when you are using them.
  3. Encrypt the hard drive of your laptop, protecting it with a strong 15+ character passphrase. If you lose the laptop, the information is still safe. You can get free encryption software at http://www.truecrypt.org/.
  4. Never use a public computer, Kiosk, or public WiFi for online banking, shopping or to access sensitive information. Since you don’t know how secure these are, prudence requires you to assume they are insecure.
Defense Strategy 4: Watch Your Credit
  1. Subscribe to a basic credit monitoring service (AAA California offers members a free service)
  2. Regularly review your bank, credit card and investment accounts for fraudulent activity.
Defense Strategy 5: Better Safe Than Sorry
  1. Always think about the information you are giving out.
  2. When in doubt, don’t.
  3. Stay up-to-date by reading our blog:  http://blog.citadel-information.com.

Saturday, September 4, 2010

What's More Powerful than a Strong Password?

Keyloggers are computer programs that capture every keystroke a user types. This includes user-ids and passwords to sensitive information, like a user's online bank account. When used by cybercriminals, these captured keystrokes are secretly transmitted back to the cybercriminal for their own dishonest use.

It was a keylogger that enabled cybercriminals to steal $400,000 from Village View Escrow last March. (See our blog post: e-Banking Bandits Target Title and Escrow Companies.) Most, if not all, of the online bank theft stories we've covered involve a keylogger used to steal online bank credentials.
 
There are several ways users can get their computers infected by a malicious keylogger. They are often surreptitiously installed as part of a virus or malware attack. Inadequately protected web sites can infect visitors with a keylogger. (See our blog post from April: Visitors to Web Sites Hosted by Network Solutions Again at Risk and August: Network Solutions Once Again Serves Up Malware.) There are even physical keyloggers that can be installed on a user's workstation.

There are three specific things you need to pay attention to keep a malicious keylogger off your workstation.
  1. Diligently keep your workstation updated with security fixes. This includes your operating system (Windows or Apple), your application programs (like Adobe reader), and your browser add-ons (like Flash).
  2. Keep your anti-virus anti-malware up to date, Consider a modern intrusion prevention system able to counter the attacks that get by your anti-malware defenses.
  3. Be very suspicious of emails, particularly those containing attachments. If the email is not from someone you know and is not something you expect, then treat it the same way you would treat a suspicious package you discover ticking in an airport bathroom.
Today's New York Times has an up-to-date overview of some new thinking about password security: A Strong Password Isn’t the Strongest Security.

Monday, April 19, 2010

Changing Culture Improves Organization's Data Privacy and Information Security Program

From a recent report by the renowned Poneman Institute: there is a "strong correlation between an organization’s level of respect for an individual’s personal data and the likelihood that the organization will suffer a data breach. By establishing an environment within an organization that encourages employees to see data as an extension of the customer and not merely something owned by the company, thereby fostering the development of a “culture of caring,” data privacy and information security programs become more effective."

Download the Poneman Report ...

Download our paper "Beyond Awareness Training: It's Time to Change the Culture" from our web site ...

Thursday, October 1, 2009

Protecting Your Business from Social Networking Attacks

Sally, the accounting manager of Acme Enterprises, a medium-sized business, regularly checked her Facebook account while at work. One day she received an email. The email said that a long-lost friend, Bob, had added her as a friend in Facebook. There was a link in the email for Sally to follow to confirm the friend request. Sally clicked the link. Over the next week, cyber-thieves withdrew nearly $1,000,000 from her employers' bank account.

Welcome to the newest nastiest twist in cybercrime.

You see, the email wasn't from Bob and the link didn't go back to Facebook. Bob's on Facebook just like Sally is. That's how the cyber-thieves found them and discovered that they might know each other. That's also where they learned that Sally worked in the accounting department.

After that it was a simple matter to set the trap by sending Sally a friend request from Bob. "How great," thought Sally, "an email from Bob. Let me just follow this link and we can be friends again."

Link followed. Trojan horse installed. $1,000,000 stolen.

According to Breach Security, the number of web security incidents was up 30 percent in the first half of 2009. And social networking sites like Facebook, MySpace and Twitter were the target of 19% of all attacks, more than any other category. That's a big change from last year's report when government networks were the most often attacked and social networks weren't even on the list.

Making matters worse, many of these attacks succeed by taking advantage of missing patches and using obscure technology like "0-day exploits" that get past traditional antivirus and antispyware defenses.

As if that's not bad enough, businesses shouldn't expect their banks to cover losses. Regulation E of the Federal Deposit Insurance Corporation (FDIC) stipulates consumers are protected by cyber crime involving their banks. The FDIC regulation does not cover businesses, however.

Here are five things you can do to inoculate your business against social network attacks:
  1. Prohibit use of social network sites from the office. These sites can be blocked at the corporate firewall. This can become particularly challenging if employees work remotely as it may not be feasible to block access to social networks from home computers. Making matters worse, Trojan horses are like communicable diseases and Sally's work-at-home computer can be infected from her son's. That's why the next four recommendations are so important.
  2. In addition to antivirus / antispyware defenses, add advanced defenses like intrusion detection and prevention designed to block internet-based attacks like the link in Sally's email and 0-day exploits.
  3. Your IT staff can block known internet-based attacks by comparing links against a database of known bad links like www.stopbadware.org/home/reportsearch.
  4. Keep your systems patched. This means not just Windows patching but all your applications, those you know about - like Office and Adobe Reader - and those you might not even know about - like Flash and Java. This also includes your Macintosh computers as they are every-bit as vulnerability-prone as Windows PCs.
  5. Finally, don't expect to rely on technology alone. Users are often the weakest link so it's very important to train them to detect the subtle signs of an attack so they can keep from becoming victims. They also need to be given guidance on what information is safe to put on a social networking site. Sally put a big bulls-eye on her back when she wrote that she works in Acme's accounting department.
There is no one thing you can do to keep from being victimized from a social network attack. Even doing all five of these isn't a guarantee, just like a flu shot doesn't guarantee you won't get the flu. But if you are diligent you can significantly affect the odds and this should be your objective.


Thanks to our friends at Lighthouse Consulting who were kind enough to publish this in their newsletter.

Sunday, June 14, 2009

An Emerging Information Security Minimum Standard of Due Care

This Guide is a revised version of a paper that first appeared in 2005 in Information Security Management Handbook, Fifth Edition, Volume 2.

The paper examines the emerging body of law surrounding an enterprise’s responsibility for securing information, together with the emerging body of information security management principles and practices for doing so. Seven key information security management elements are identified which we believe constitute an information security minimum standard of due care. Enterprises failing to implement these seven management elements could face significant legal exposure should they suffer a security breach resulting in damage to a 3rd-party.

The paper applies explores the application to information security of appellate rulings in several negligence cases to the questions of Duty of Care and Breach of Duty: Kline v. 1500 Massachusetts Avenue Apartment Corp, United States v. Carroll Towing Co, Texas & P.R v Behymer, T. J. Hooper v. Northern Barge and People Express Airlines v. Consolidated Rail Corp.

http://www.citadel-information.com/

Wednesday, June 10, 2009

Information Security Standard of Due Care

A very short overview of emerging information security laws, regulations and practitioner standards. http://www.citadel-information.com.

Sunday, June 7, 2009

Saturday, June 6, 2009

Citadel Guide: Effectively Managing Information Security Risk

A guide for senior executives having responsibility for designing and implementing a cost-effective program program to secure critical information assets.

http://www.citadel-information.com/