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Filtered by: rc4 Clear Filter

Lessons in disabling RC4 in Active Directory (2021)

news.ycombinator.com Steve Syfuhs 2025-09-27 23:40:34

Was pulled in to a fun customer issue last Friday around disabling RC4 in Active Directory. What happened was, as you can imagine, not good: RC4 was disabled and half their environment promptly started having a Very Bad Day. — Steve Syfuhs (@SteveSyfuhs) March 1, 2021 Twitter warning: Like all good things this is mostly correct, with a few details fuzzier than others for reasons: a) details are hard on twitter; b) details are fudged for greater clarity; c) maybe I'm just dumb. RC4 is a stream

Topics: data key password rc4 salt
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U.S. Senator accuses Microsoft of “gross cybersecurity negligence”

bleepingcomputer.com Unknown 2025-10-03 11:23:41

U.S. Senator Ron Wyden has sent a letter to the Federal Trade Commission (FTC) requesting the agency to investigate Microsoft for failing to provide adequate security in its products, which led to ransomware attacks against healthcare organizations. The Senator started the formal asking by saying that Microsoft should be held "responsible for its gross cybersecurity negligence, resulting in ransomware attacks against critical infrastructure, including U.S. health care organizations." The Senat

Topics: algorithm microsoft rc4 security senator
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Senator blasts Microsoft for making default Windows vulnerable to “Kerberoasting”

arstechnica.com Unknown 2025-10-05 19:38:13

A prominent US Senator has called on the Federal Trade Commission to investigate Microsoft for “gross cybersecurity negligence,” citing the company’s continued use of an obsolete and vulnerable form of encryption that Windows uses by default. In a letter to FTC Chairman Andrew Ferguson, Sen. Ron Wyden (D–Ore.) said an investigation his office conducted into the 2024 ransomware breach of the health care giant Ascension found that default use of the RC4 encryption cipher was a direct cause. The b

Topics: cipher encryption microsoft rc4 use
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