spam

We explore spam campaigns during this holiday season, demonstrating what can happen if someone actually clicks on links or open attachments in these unsolicited emails.

This month, we decided to take a look at some of the trends we’ve seen in a shifting threat landscape, including attackers who are adapting their techniques to take advantage of new opportunities. When you understand what they’re doing, it’s easier to mount a better defense against new trends in the threat landscape. 

Real users explain how to implement robust protection with Cisco Email Security’s sophisticated filtering, built-in intelligence and policy definition and enforcement capabilities.

Everyone has a spam folder. It’s often disregarded as a dark, bottomless pit for fake emails from FedEx, pharmacy offers, and introductory emails from women far too amorous to be anything but fantastical. You’d be right to largely ignore this folder. Yet each day new emails end up in it. Most of us have learned […]

Talos has compiled a list of 74 groups on Facebook promising to carry out an array of cyber dirty deeds, and we are tracking their potential impact on Cisco customers.

Brushaloader is an evolving threat that is being actively developed and refined over time as attackers identify areas of improvement and add additional functionality. Ensure PowerShell logging is enabled and configured on endpoints.

Cisco Talos recently observed a malware campaign delivering malicious Microsoft PowerPoint document using a mailing list run by the Central Tibetan Administration (CTA), an organization officially representing the Tibetan government-in-exile....

This blog was written by Jaeson Schultz. Organizations across the country are on edge today after a flurry of phony bomb threats hit several public entities Thursday, such as universities,...

By examining sextortion spam campaigns in detail, our researchers were able to understand how criminals operate, and to see why users were tricked into sending them bitcoin despite empty threats.