Craigslist does not have the best reputation. You can find almost anything on Craigslist, including apparently malware. A recent report claimed that hackers were attempting to use the Craigslist mailing system to distribute malware to users.

One feature on Craigslist is the ability to send a message through its mailing system without revealing

Source: Hot Hardware – Hackers May Have Compromised Craigslist’s Email System, Watch Out For Phishing Scams