Trailrunner7 writes with this excerpt from ThreatPost illustrating the ongoing Spy-vs.-Spy battle between spammers and the rest of us:
"Spammers have jumped on the little-used soft hyphen (or SHY character) to fool URL filtering devices. According to researchers, spammers are larding up URLs for sites they promote with the soft hyphen character, which many browsers ignore. Spammers aren't shy about jumping humans flexible cognitive abilities to slip past the notice of spam filters (H3rb41 V14gr4, anyone?). ... The latest trend involves the use of an obscure character called the soft hyphen or 'SHY' character to obscure malicious URLs in spam messages. Writing on the Symantec Connect blog, researcher Samir Patil said that the company has seen recent spam messages that insert the HTML symbol for the soft hyphen to obfuscate URLs for Web pages promoted by the spammers."