Sensitive details on thousands of banking executives lifted from a hacking involving the Federal Reserve represent a potential "bonanza" for spear phishers looking to snare high-value targets in personalized scam e-mails, a security researcher said. The list is no longer readily available online, but according to Chris Wysopal, CTO of security firm Veracode, it contained details from a Federal Reserve-related database that Anonymous-affiliated hackers claimed to breach on Sunday.