If you have to file US income taxes, today is your last day to do so for the 2007 tax year. Of course, as expected, there are plenty of scams people wrote in today about. Most of these involve fake IRS emails, and they either promise a refund (which then leads to a phishing site), or they arrive with an attachment which of course turns out to be malware. In a new twist, some of these scams evolve around the economic stimulus package passed earlier this year, which leads to special refunds for many US tax filers. Since there isn't much new here (but enough of it to warrant this quick note), please use this to re-enforce basic safe computing practices. Minimize the use of attachments. Avoid handing out confidential information over e-mail or based on a request sent to you via e-mail. If in doubt: call (but be careful with inbound calls as well. If in doubt, call back a listed number, not the number provided by the caller or caller ID). Finally: If you are heading for SANS 2008 in Orlando next week, stop by. I should be around all week. ----- Johannes B. Ullrich, Ph.D. Chief Research Officer, SANS