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Intrusions


71 Posts

The Canvas Attack, Ivanti and Palo Alto Exploits, and Dirty Frag

If we needed any more evidence that the internet was a mistake, this week provided it. We kick things off with a discussion of the Canvas breach that has affected thousands of schools worldwide, then we dig into the disclosure of two new vulnerabilities in Ivanti and Palo Alto Networks products that are actively exploited, […]

By Dennis Fisher

May 8, 2026 | 1 min read

PodcastVulnerability

The fast16 Mystery, Stuxnet, and the History of Cyber Espionage | Juan Andres Guerrero-Saade

JAGS joins Dennis Fisher to unpack the complex history of fast16, a highly targeted cyber espionage platform that goes back as far as 2005, many years before Stuxnet, and was deployed against targets in Iran. JAGS has been in the APT hunting game for a long time, and brings his historical perspective and context around […]

By Dennis Fisher

May 4, 2026 | 1 min read

MalwareVideo

Alleged Silk Typhoon Hacker Extradited to US

The hacker was allegedly involved in Hafnium campaigns that targeted Exchange server flaws and in attacks against COVID-19 research institutions.

By Lindsey O'Donnell-Welch

April 28, 2026 | 3 min read

Firestarter Malware Sparks Updated CISA Emergency Directive

CISA is warning of a persistent backdoor called Firestarter that’s being used in attacks against Cisco Firepower and Secure Firewall products.

By Lindsey O'Donnell-Welch

April 27, 2026 | 4 min read

Ciscofirestarter malware

The Vercel Intrusion and What is Happening at CISA

This week we dig deep into the Vercel intrusion that emerged last weekend, how it happened, what the response was, and what the downstream effects may be for defenders. Then we talk about CISA’s bizarre delayed response to the Axios npm compromise and what it signals about the agency’s capabilities going forward.

By Dennis Fisher

April 24, 2026 | 1 min read

AIData breach

Cisco CVE-2026-20133 Targeted in Active Attacks

The three newly added bugs are CVE-2026-20122, CVE-2026-20128, and CVE-2026-20133, the last of which had not been identified in active attacks before.

By Dennis Fisher

April 22, 2026 | 2 min read

CiscoVulnerability
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