Cisco Talos Blog

December 2, 2021 14:00

Threat Source Newsletter (Dec. 2, 2021)

Good afternoon, Talos readers. The Thanksgiving holiday in the U.S. didn't slow us down at all, even though we were all still trying to sleep off the food coma from the long weekend. But we came back this week with lots of fun content. Cisco received an early Christmas pres

November 18, 2021 14:00

Threat Source Newsletter (Nov. 18, 2021)

Good afternoon, Talos readers. This is our last newsletter before Thanksgiving in the U.S. next week, so now's as good of a time as any to remind you: If a deal seems too good to be true, it probably is. To prep online shoppers for the upcoming Cyber Monday and Black Friday

November 11, 2021 14:00

Threat Source newsletter (Nov. 11, 2021)

Good afternoon, Talos readers. It's important to be proactive, and not reactive, with your security. It's always better to see the worst coming and block it than have to scramble to deal with the worst-case scenario in the moment. That's why it's so important to

November 4, 2021 14:00

Threat Source newsletter (Nov. 4, 2021)

Good afternoon, Talos readers. A series of vulnerabilities in Microsoft Exchange Server made waves earlier this year for coming under attack. And while they've come and gone from the headlines since then, attackers are still very much paying attention. Attackers spreading t

October 28, 2021 14:00

Threat Source newsletter (Oct. 28, 2021)

Good afternoon, Talos readers. Most people know about chicken and waffles. But what about squirrel and waffles? They may not be the most appetizing brunch, but they are teaming up for one heck of a spam campaign. We have new research out detailing this threat and examining whet

October 21, 2021 14:00

Threat Source newsletter (Oct. 21, 2021)

Good afternoon, Talos readers. We're writing this on Wednesday for PTO reasons, so apologies if we miss any major news that happens after Wednesday afternoon. Above, you can watch our awesome live stream from Monday with Brad Garnett from Cisco Talos Incident Response. Brad

October 14, 2021 14:00

Threat Source newsletter (Oct. 14, 2021)

Good afternoon, Talos readers. It's still Cybersecurity Awareness Month, and what better way to celebrate by patching and then patching some more? This week was Microsoft Patch Tuesday, which only included two critical vulnerabilities, but still requires patching diligence.

October 7, 2021 14:00

Threat Source newsletter (Oct. 7, 2021)

Good afternoon, Talos readers. Every day, we see mountains and mountains of data. So how do we comb through all of it to find out what's important to customers and users? Well, there are many ways, but we wanted to give readers and researchers a look into at least one option

September 30, 2021 14:00

Threat Source newsletter (Sept. 30, 2021)

Good afternoon, Talos readers. In the latest example of attackers trying to capitalize on current headlines, we've spotted a group using the recent fervor around the Pegasus spyware to spread malware. We've detailed a campaign in which the attackers have copied (nearly