Someone Is Learning How to Take Down the Internet

Bruce Schneier has an interesting article about a development that brings back memories from when Stuxnet was discovered. Over the past year or two, someone has been probing the defenses of the companies that run critical pieces of the Internet. These probes take the form of precisely calibrated attacks designed to determine exactly how well these companies […]

SpamAssassin to blacklist and unblacklist

SpamAssassin has a feature to blacklist and unblacklist certain e-mailaddressen. But recently I noticed something interesting that may need some more investigation. I have all addresses for domain example.org blacklisted, but also unblacklisted certain functional addresses as is shown in the example below. blacklist_from *@example.org unblacklist_from abuse@* unblacklist_from hostmaster@* unblacklist_from postmaster@* unblacklist_from security@* unblacklist_from webmaster@* […]