The recent rash of phishing attacks on Twitter should give microbloggers good incentive for strengthening their passwords and double-checking their account settings, says a security blogger.

In the most recent exploit, phishers gained access to users' Twitter accounts - including that of U.K. Cabinet Minister Ed Miliband - and sent out tweets saying inappropriate, personal things, then pointing followers to a Web site that sells herbal Viagra.  In Miliband's case the spoofed tweet was removed from his stream of posts, and the cabinet member sent out an explanation shortly thereafter.