The population of Web sites dedicated to the crime of phishing jumped markedly in October after dipping late in the summer, according to the latest data from the Anti-Phishing Working Group. The good news, though, is that experts appear to be working out a new way to shut down these sites in a way that will keep fraudsters off the Internet. The group’s October report, released last week, shows the number of unique phishing sites grew 22% from September, to 34,266. That’s the highest number detected by the APWG since May, though it falls far short of the record 55,643 found last April.