Spam drops by 70%, but not for long

On 11 November servers were shut down on one of the world’s biggest spammers. Anti-spam firm Ironport has seen junk mail levels drop by 70% since McColo was taken offline. But this will only be temporary as they will move their operations to jurisdictions which are under less scrutiny.

A recent study by computer scientists from the University of California, Berkeley and UC, San Diego found that spammers manage to turn a profit despite only getting one response to every 12.5 million emails they send.

Spam plummets as gang leaves net

Study shows how spammers cash in