Security

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Several of Twitter’s C-level security and privacy executives have resigned following the chaos that ensued from the Elon Musk acquisition of the social media platform. “I’ve made the hard decision to leave Twitter,” said the company’s now-former chief information security officer Lea Kissner in a tweet on Thursday. “I’ve had the opportunity to work with
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The Cybersecurity and Infrastructure Security Agency (CISA) has published a new guide on Stakeholder-Specific Vulnerability Categorization (SSVC). This vulnerability management methodology is designed to assess vulnerabilities and prioritizes remediation efforts based on exploitation status, impacts on safety and prevalence of the affected product in a singular system. SSVC was first created by CISA in collaboration
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Three vulnerabilities have been discovered in the UEFI firmware of several Lenovo notebooks. Tracked CVE-2022-3430, CVE-2022-3431 and CVE-2022-3432, the flaws have been found by security researchers at ESET and affect various Lenovo Yoga, IdeaPad and ThinkBook devices. The first of the vulnerabilities is a flaw in the WMI Setup driver, which may allow an attacker with elevated privileges to modify
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A path-traversal vulnerability has been discovered in ABB Totalflow flow computers and controllers that could lead to code injection and arbitrary code execution (ACE). The high-risk vulnerability (tracked CVE-2022-0902) has a CVSS v3 of 8.1 and affected several ABB G5 products. It has been discovered by security experts at Team82, Claroty’s research arm. “Attackers can exploit this
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by Paul Ducklin Remember those Exchange zero-days that emerged in a blaze of publicity back in September 2022? Those flaws, and attacks based on them, were wittily but misleadingly dubbed ProxyNotShell because the vulnerabilities involved were reminiscent of the ProxyShell security flaw in Exchange that hit the news in August 2021. Fortunately, unlike ProxyShell, the
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Australia’s largest health insurer Medibank has announced it will not pay a ransom to the threat actors behind the October data breach affecting 9.7 million customers. Writing on LinkedIn over the weekend, Medibank CEO David Koczkar said that, based on the advice the company has received from cybercrime experts, they believe that there is only a
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A business email compromise (BEC) group dubbed ‘Crimson Kingsnake’ has recently been spotted impersonating well-known international law firms to trick recipients into approving overdue invoice payments. As outlined in a technical write-up by cloud email security platform Abnormal, 92 malicious domains of 19 law firms and debt collection agencies across the US, UK and Australia have been
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The LockBit hacking group has claimed responsibility for the August cyber-attack against the multinational automotive group Continental. The ransomware gang made the announcement on its leak site on Wednesday and is threatening to publish the company’s data unless the ransom is paid over the next few hours of today (Friday). On the dark web blog
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by Paul Ducklin Yesterday, we wrote about the waited-for-with-bated-breath OpenSSL update that attracted many column-kilometres of media attention last week. The OpenSSL team announced in advance, as it usually does, that a new version of its popular cryptographic library would soon be released. This notification stated that the update would patch against a security hole
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The individuals behind the Black Basta ransomware have been linked to hacking operations conducted by the FIN7 threat actors. According to a new advisory by SentinelLabs, Black Basta actors have used a custom defense impairment tool (found exclusively in incidents by this specific threat actor) in several instances. “Our investigation led us to a further
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The US Department of Justice (DoJ) has published a document highlighting charges against eight individuals for their participation in a Racketeer Influenced and Corrupt Organizations (RICO) conspiracy that involved hacking and tax fraud. US attorney Roger B. Handberg announced the partial unsealing of the indictment on Tuesday, charging Andi Jacques, Monika Shauntel Jenkins, Louis Noel
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A major hospital in Osaka, Japan, has suspended routine medical services following a ransomware cyber-attack that disrupted its electronic medical record systems. Emergency operations are continuing, but Osaka General Medical Center officials told reporters on Monday that the hospital system failed earlier today and could not be accessed. They have also reported that a contractor
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The Cybersecurity and Infrastructure Security Agency (CISA) has published a new series of guidelines to help federal agencies defend against distributed denial-of-service (DDoS) attacks. The Capacity Enhancement Guide has been published in collaboration with the Federal Bureau of Investigation (FBI) and the Multi-State Information Sharing and Analysis Center (MS-ISAC). It provides organizations with proactive steps
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by Paul Ducklin Imagine that you’d spoken in what you thought was total confidence to a psychotherapist, but the contents of your sessions had been saved for posterity, along with precise personal identification details such as your unique national ID number, and perhaps including additional information such as notes about your relationship with your family…
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The threat actors behind the Raspberry Robin worm have been associated with a complex and interconnected malware ecosystem comprising the Clop and LockBit ransomware groups. The findings come from Microsoft, which has said the worm had alternate infection methods beyond its original USB drive spread. “These infections lead to follow-on hands-on-keyboard attacks and human-operated ransomware
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A previously undocumented dropper has been spotted installing backdoors and other tools using the new technique of reading commands from apparently innocuous Internet Information Services (IIS) logs. The dropper has been discovered by cybersecurity researchers at Symantec, who said an actor is using the piece of malware dubbed Cranefly (aka UNC3524) to install another piece
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by Paul Ducklin Google pushed out a bunch of security fixes for the Chrome and Chromium browser code earlier this week… …only to receive a vulnerability report from researchers at cybersecurity company Avast on the very same day. Google’s response was to push out another update as soon as it could: a one-bug fix dealing