A massive spam operation that sent out more than one billion messages a day was exposed by researchers who called the operation “illegal” and a “tangible threat to online privacy and security.”

SMTP Strict Transport Security is coming to major webmail providers this year, a Google engineer said at RSA Conference

Researchers from the University College London have found a Twitter botnet of 350,000 bots that has been dormant since shortly after the accounts were registered.

Carbanak has moved away from its exclusive focus on financial services, branching out to attacks against hospitality and retail.

Carbanak has surfaced again with new campaigns using Google hosted services such as Forms and Sheets as command and control channels.

Security experts are warning of an active phishing campaign that utilizes PDF attachments in a novel ploy to harvest email credentials from victims.

Researchers have spotted an increase in Nemucod downloader infections moving via Facebook Messenger spam, with some victims being infected with Locky ransomware.

Researchers have identified a new ransomware strain that spoofs tracking services via spam messages and contain URLs that link to malicious files.

It didn’t take long for attackers to start capitalizing on the popularity of Pokémon GO. Shortly after Niantic, the company behind the now ubiquitous app, released it last month, researchers spotted a malicious, backdoored version of the app on a file repository service. Now attackers are pushing SMS spam messages to entice Pokémon GO players to visit...

The latest Android malware campaign to wend its way through Google’s Play marketplace can leverage victims’ phones for ad fraud, carry out DDoS attacks, send spam, and more, researchers warn. Dubbed Viking Horde, the campaign ropes Android devices into a botnet without their owners being any the wiser. A handful of apps that spread the...