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Jim Walter

Jim Walter is a Senior Threat Researcher at SentinelOne focusing on evolving trends, actors, and tactics within the thriving ecosystem of cybercrime and crimeware. He specializes in the discovery and analysis of emerging cybercrime "services" and evolving communication channels leveraged by mid-level criminal organizations. Jim joined SentinelOne following ~4 years at a security start-up, also focused on malware research and organized crime. Previously, he spent over 17 years at McAfee/Intel running their Threat Intelligence and Advanced Threat Research teams.
New GBU Weekly
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The Good, the Bad and the Ugly in Cybersecurity – Week 42

Jim Walter / October 15, 2021

Nations band together to battle ransomware, cyberattack knocks Ecuadorian ATMs offline, and new data suggests over 270 APT groups are active in 2021.

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Negotiation Is A Hostile Act Ransomware Gangs Turn Up The Heat On Victims 4
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Negotiation is a Hostile Act | Ransomware Gangs Turn Up the Heat on Victims

Jim Walter / October 4, 2021

Ransomware operators like Ragnar_Locker, Conti, Grief and others now consider recovery companies 'hostile'. What does that mean for victims?

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New GBU Weekly
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The Good, the Bad and the Ugly in Cybersecurity – Week 40

Jim Walter / October 1, 2021

CISA unveils tools to fight malicious insiders, Blackbyte and Conti ramp up ransomware attacks, and new APT backdoor shares links to SolarWinds attack.

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New GBU Weekly
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The Good, the Bad and the Ugly in Cybersecurity – Week 38

Jim Walter / September 17, 2021

Relief for some as REvil ransomware decrypter is released, zero-click bug affects almost every Apple device, and US spies made to pay by DoJ.

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New GBU Weekly
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The Good, the Bad and the Ugly in Cybersecurity – Week 36

Jim Walter / September 3, 2021

Stalkerware CEO falls foul of FTC, darknet vendor offers GPU-based malware for sale, and ex-spy chief says China steals US data to train AI.

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Hive Attacks Analysis Of The Human Operated Ransomware Targeting Healthcare 10
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Crimeware

Hive Attacks | Analysis of the Human-Operated Ransomware Targeting Healthcare

Jim Walter / August 23, 2021

Hive is a double-extortion ransomware group that’s hit over 30 organizations. Read our deep-dive into the ransomware toolkit.

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New GBU Weekly
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The Good, the Bad and the Ugly in Cybersecurity – Week 34

Jim Walter / August 20, 2021

New guidance on sharpening ransomware response skills, IOT platform exposed to remote compromise, and more MS Exchange bugs prolong admins' sleepless nights.

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New GBU Weekly
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The Good, the Bad and the Ugly in Cybersecurity – Week 31

Jim Walter / July 30, 2021

Biden beefs up cybersecurity in bid to avoid gun battle, Iranian APT flirts with U.S. defense contractors, and CISA lists top routinely exploited CVEs.

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New GBU Weekly
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The Good, the Bad and the Ugly in Cybersecurity – Week 28

Jim Walter / July 9, 2021

Cyber cops track down ZombieBot fraudster, scammers capitalize on Kaseya bug fix as a phishing lure, and REvil claim to infect "more than a million" systems.

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The Good, the Bad and the Ugly in Cybersecurity – Week 25

Jim Walter / June 18, 2021

Clop gang's money launderers swept up by coalition of cyber cops, forums continue to trade new ransomware offerings, and Paradise source code leaked online.

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SentinelLabs

In the era of interconnectivity, when markets, geographies, and jurisdictions merge in the melting pot of the digital domain, the perils of the threat ecosystem become unparalleled. Crimeware families achieve an unparalleled level of technical sophistication, APT groups are competing in fully-fledged cyber warfare, while once decentralized and scattered threat actors are forming adamant alliances of operating as elite corporate espionage teams.

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