There have been reports from the Asterisk open-source PBX community that spammers are attempting to gain access to Asterisk PBX through brute-force attacks.
All about TLS-encrypted spam: Part II
All about TLS-encrypted spam: Part 1
First IPv6 Spam Message Caught in the Wild
Amazing new exploit for Linksys routers running DD-WRT
Transparent outbound filtering: An upcoming series of blog posts
Stats Porn Friday: How Traffic Shaping cuts out 2/3 more spam than blocking alone
Why Traffic-Shaping Uses Less Resources, Not More
Is Postfix Anvil(8) as good as it gets for spam DDoS protection?
Survey Results from Parallels Summit 2009
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