Cloudmark is now part of Proofpoint. Learn More

About Proofpoint

Spambot Forwards Legitimate Emails With Malware Payload Added

The recent detection of the Onliner spam botnet, which uses 80 million compromised email accounts to send spam to 711 million targets, is shocking in its size but not in the techniques used. Spammers have long used compromised email accounts to send spam. This avoids email filtering based on the source IP address. However, a […]

Petya Ransomware Hits 2,000 Targets

Following on from last month’s WannaCry outbreak a new ransomware attack has infected at least 2,000 targets globally including Russia, the United States, Denmark and the Ukraine. Banks, retailers, energy firms and transport networks are among the industries affected. Security researchers have identified the ransomware as a variant of Petya, also named “NotPetya” and “GoldenEye”, […]

Hacking Back

New US legislation proposed by Representative Tom Graves, a Georgia Republican, would allow the victim of a cyber attack to take active countermeasures against the attacker’s computer without being guilty of a crime under the Computer Fraud and Abuse Act (CFAA). While hacking back might be might be an emotionally satisfying concept there are severe […]

A Few Users Fooled By Previously Unknown MS Word Bug

Microsoft has just released a patch for a recently discovered bug in Word that allows a malicious document to install malware when opened, even if the user does not enable macros in Office. This vulnerability is being used by spammers to distribute various forms of malware including the Dridex banking trojan. While Cloudmark’s spam filtering […]

Learn More About Cloudmark
Our Products
News and Events
Site Map  •  Privacy Policy  •  ©2002–2019 Cloudmark, Inc.