Security
- Security
Email – From Novelty to Nefarious
How a revolutionary technology was usurped for evil, and what we can do about it Since its inception, email has gone from a novelty, to a necessity, to at…
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- Threat Research
DNS Hijacking Abuses Trust In Core Internet Service
This blog post discusses the technical details of a state-sponsored attack manipulating DNS systems. While this incident is limited to targeting primarily national security organizations in the Middle East and…
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- Security
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To the Depth of TLS Invisibility and Beyond
Encrypted traffic is changing the threat landscape…Encryption technology enables greater privacy and security to communicate and transact business online. Mobile, cloud, and web applications rely on well-implemented encryption mechanisms, using
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- Security
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Cryptographic Visibility: Quality Encryption at Your Fingertips
There is only one thing more important than the right answer, and that is asking the right question. I have spent my entire career doing security analytics and all of…
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- Security
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Kill Complexity with Cisco Defense Orchestrator
Managing security policies is complex and time-consuming, especially when your network has multiple firewalls deployed across many locations. Cisco Defense Orchestrator is here to make your job easier.
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- Threat Research
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New HawkEye Reborn Variant Emerges Following Ownership Change
HawkEye is another example of malware being marketed across various hacking forums. Talos observed ongoing malware distribution campaigns attempting to leverage the latest version of the HawkEye keylogger/stealer, HawkEye Reborn
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- Threat Research
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Vulnerability Spotlight: Multiple vulnerabilities in Shimo VPN’s helper tool
Cisco Talos is disclosing a series of vulnerabilities found in the Shimo VPN Helper Tool. Shimo VPN is a popular VPN client for MacOS that can be used to connect…
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- Security
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Black Hat Asia 2019: Watch Out for the Secondary Payload
Cisco Security was a proud technology partner in the Network Operations Center (NOC) at Black Hat Asia, providing secure and open Internet access to attendees. See what the NOC discovered.
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- Threat Research
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Threat Roundup for April 5 to April 12
Today, Talos is publishing a glimpse into the most prevalent threats we’ve observed between Apr. 5 and Apr. 12. As with previous roundups, this post isn’t meant to be an…
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- Threat Research
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Sextortion Profits Decline Despite Higher Volume, New Techniques
Sextortionists are doing everything to evade spam filters and convince potential victims that perceived threats are real. Here are some recent changes we’ve seen in the sextortion email landscape.
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