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Email security


August 14, 2009  7:18 PM

Gmail Vulnerability Points Up the Need for Strong Password Policy



Posted by: Ken Harthun
Email security, Exploits, Gmail, insecure, Password, Secure Computing, Security, Vulnerabilities

There’s a vulnerability affecting Gmail accounts that was recently announced by security researcher Vincente Aguilera Diaz. You can read the posting on the Full Disclosure security list which contains complete...

July 27, 2009  8:50 PM

“Of Course, I Never Reply to Spam – Except Sometimes”



Posted by: Ken Harthun
Botnet, E-mail scam, Email security, Phishing, Secure Computing, Security, security awareness, spam

Sounds funny, doesn't it?  But that's part of the title of a consumer survey recently completed by the Messaging Anti-Abuse Working Group (MAAWG): "A...

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May 11, 2009  8:44 PM

Real Spam Statistics



Posted by: Ken Harthun
email, Email security, Security, spam

Depending on whose reports you view, spam accounts for from 85 to 95 percent of all emails sent. This may hold true over the Internet at large, but as with any other statistical data, there are local and regional variations. My own inbox is an exception to the general rule; I get far more...


April 30, 2009  1:21 AM

Swine Flu Breeds Spam



Posted by: Ken Harthun
E-mail scam, Email security, Scam, Security, spam

As usually happens with major disaster events—in this case the impending Swine Flu pandemic—email scammers are busy perpetrating pharmaceutical and other types of scams. In some cases, they’re using celebrity names to grab attention. Spam is hitting inboxes with various subjects. The...


April 15, 2009  12:31 AM

Beware U.S. Tax Phishing Scams



Posted by: Ken Harthun
E-mail scam, Email security, IRS Phishing, Scam, Tax scam

It's tax time in the U.S. and with that generally comes an increase in the number of phishing scams directed at taxpayers. The IRS, whether we like them or not, has an excellent anti-scam/anti-phishing web site. One key thing to remember is that the IRS does not initiate taxpayer communications...


February 11, 2009  10:30 PM

Software for Secure Computing: Easy Email & File Security with AxCrypt



Posted by: Ken Harthun
Email security, Encryption, Secure Computing, Security

Most of the email we send and receive from our co-workers, family, and businesses contains little that requires any degree of confidentiality. The same goes for most of the files we have stored on our hard drives and thumb drives. Occasionally, however, we need to pass on or store some information...


January 14, 2009  2:28 AM

Security Resolutions for 2009



Posted by: Ken Harthun
Email security, Secure Computing

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October 17, 2008  1:26 AM

Beware of E-Mail Scam Targeting Microsoft Customers



Posted by: Ken Harthun
E-mail scam, email, Email security, Security, spam, Trojan

The latest e-mail scam targeting Microsoft customers delivers the Backdoor:Win32/Haxdoor trojan as an attachment. The email looks like this:

Dear Microsoft...


July 27, 2008  4:09 PM

Nine Steps to System Security – 2008



Posted by: Ken Harthun
Anti-malware, Anti-virus, Browsers, Email security, Firewalls, Malware, Microsoft Windows, NAT, Opinion, Phishing, Rootkit, Routers, Security, spam, Vulnerabilities

It isn’t getting any better on The Wild, Wild Web, despite state and federal government attempts to arrest and prosecute those responsible for electronically-perpetrated criminal acts. Spyware and malware of all kinds are increasingly more stealthy and difficult to remove thanks to


July 25, 2008  1:45 AM

Sure-fire Spam Zombie Killer



Posted by: Ken Harthun
email, Email security, Exchange, Firewalls, Networking, Routers, Security, spam

The other day, I got a call from one of my clients who said that their email was bouncing back from people they had always been able to send to. I investigated and found that the error message was to the effect of <hostname.domain #5.5.0 smtp;550 Blocked;Spam/Zombie address listed at...


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