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Articles by Mark Gorwitz
Iran, nuclear weapons, cyberattacks, Fast16 malware
IRAN NUKESFast 16 Malware Aimed at Undermining Proliferant State Nuclear Weapons Programs, Iran was a Credible Target Published 21 May 2026 The Fast 16 malware looks to be targeting a nuclear weapon program’s hydrodynamic calculation group working on implosion systems using weapon-grade uranium as the nuclear explosive material. We performed this analysis in collaboration with Symantec’s Threat Hunter Team and Kim Zetter, with whom we had collaborated years ago on the Stuxnet malware.
Iran’s Likely Violations of Section T: Computer Modeling Relevant to Nuclear Weapons Development | Institute for Science and International Security
Iran’s Likely Violations of Section T: Computer Modeling Relevant to Nuclear Weapons Development by Mohammadreza Giveh, Mark Gorwitz, and David Albright September 10, 2024 Iran has developed elaborate cover stories for its nuclear weapons development activities, as seen in the Nuclear Archive and elsewhere. 1 It is a strategy that evolved from the Amad Plan, Iran’s crash nuclear weapons program in the early 2000s.
Iran’s Likely Violations of Section T: Computer Modeling Relevant to Nuclear Weapons Development
Iran has developed elaborate cover stories for its nuclear weapons development activities, as seen in the Nuclear Archive and elsewhere. 1 It is a strategy that evolved from the Amad Plan, Iran’s crash nuclear weapons program in the early 2000s. Iran conducts work that continues Iran’s nuclear weapons development by calling it civilian or non-nuclear military work.
Iran’s Early Development of Nuclear Weapons Codes-
Based on a recently obtained Farsi document from the Iranian Nuclear Archive, believed to date to the late 1990s or early 2000s, Iran’s theoretical work on nuclear weapons was aided by studies of certain transient phenomena in nuclear reactor accidents, a practice other countries employed in developing nuclear weapons.
North Korea’s Lithium 6 Production for Nuclear Weapons
Available information strongly indicates that North Korea has built and is operating a lithium 6 production plant that is part of its nuclear weapons effort. The plant is suspected to be located at the Hungnam Chemical Complex near Hamhung on North Korea’s east coast. Lithium 6 is a critical raw material needed for the production of single-stage thermonuclear and boosted fission weapons.
Fast 16 Malware Aimed at Undermining Proliferant State Nuclear Weapons Programs, Iran was a Credible Target
We performed this analysis in collaboration with Symantec’s Threat Hunter Team and Kim Zetter, with whom we had collaborated years ago on the Stuxnet malware. They published their analyses in two separate reports that can be found here and here. Our collaboration with Symantec and Kim Zetter developed after Sentinel One publicly revealed the Fast16 malware, which is dated to about 2005 and was a multi-year sustained operation.
Iran’s Early Development of Nuclear Weapons Codes— | Institute for Science and International Security
Iran’s Early Development of Nuclear Weapons Codes— An Example from the Nuclear Archive of a Project Proposal at Imam Hussein University by David Albright and Mark Gorwitz February 18, 2020 Download PDF Based on a recently obtained Farsi document from the Iranian Nuclear Archive, believed to date to the late 1990s or early 2000s, Iran’s theoretical work on nuclear weapons was aided by studies of certain transient phenomena in nuclear reactor accidents, a practice other countries employed in...
North Korea’s Lithium 6 Production for Nuclear Weapons | Institute for Science and International Security
Available information strongly indicates that North Korea has built and is operating a lithium 6 production plant that is part of its nuclear weapons effort. The plant is suspected to be located at the Hungnam Chemical Complex near Hamhung on North Korea’s east coast. Lithium 6 is a critical raw material needed for the production of single-stage thermonuclear and boosted fission weapons.
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