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Claude Code leak used to push infostealer malware on GitHub

Threat actors are exploiting the recent Claude Code source code leak by using fake GitHub repositories to deliver Vidar information-stealing malware.

Claude Code is a terminal-based AI agent from Anthropic, designed to execute coding tasks directly in the terminal and act as an autonomous agent, capable of direct system interaction, LLM API call handling, MCP integration, and persistent memory.

On March 31, Anthropic accidentally exposed the full client-side source code of the new tool via a 59.8 MB JavaScript source map included by accident in the published npm package.

LinkedIn secretely scans for 6,000+ Chrome extensions, collects data

A new report dubbed “BrowserGate” warns that Microsoft’s LinkedIn is using hidden JavaScript scripts on its website to scan visitors’ browsers for installed extensions and collect device data.

According to a report by Fairlinked e. V., which claims to be an association of commercial LinkedIn users, Microsoft’s platform injects JavaScript into user sessions that checks for thousands of browser extensions and links the results to identifiable user profiles.

The author claims that this behavior is used to collect sensitive personal and corporate information, as LinkedIn accounts are tied to real identities, employers, and job roles.

Microsoft still working to fix Exchange Online mailbox access issues

Microsoft is investigating and working to resolve Exchange Online mailbox access issues that have intermittently affected Outlook mobile and macOS users for weeks.

When it first acknowledged this service issue (tracked under EX1256020) last week, Microsoft said it started on March 11 and that the root cause was a newly introduced virtual account. While the company flagged it as resolved on April 1, the incident has been re-added to the admin message center under a different tag (EX1268771).

“We’ve received reports from affected tenants that the impact scenario originally communicated through SHD EX1256020 is still ongoing. We’re working to restart the Notification Broker service on affected portions of Exchange Online service infrastructure to remediate impact while we continue our analysis into the underlying root cause,” Microsoft says.

Man admits to locking thousands of Windows devices in extortion plot

A former core infrastructure engineer has pleaded guilty to locking Windows admins out of 254 servers as part of a failed extortion plot targeting his employer, an industrial company headquartered in Somerset County, New Jersey.

According to court documents, 57-year-old Daniel Rhyne from Kansas City, Missouri, remotely accessed the company’s network without authorization using an administrator account between November 9 and November 25.

Throughout this time, he allegedly scheduled tasks on the company’s Windows domain controller to delete network admin accounts and to change the passwords for 13 domain admin accounts and 301 domain user accounts to “TheFr0zenCrew!”

Study suggests people are losing 338 spoken words every year and have been for at least 15 years

In a society increasingly shaped by self-checkouts, GPS navigation and touchscreen ordering kiosks, new research shows face-to-face conversation may be quietly fading. A new study published in Perspectives on Psychological Science suggests that people are losing 338 spoken words every year and have been for at least a decade and a half.

Matthias Mehl, a psychology professor at the University of Arizona, has spent his career studying how people communicate in everyday life. When he set out to replicate his landmark 2007 Science paper on gender differences in talkativeness, the results pointed to something he hadn’t gone looking for: a steady, years-long decline in how much people speak each day.

For this study, Mehl collaborated with Valeria Pfeifer, an assistant professor of psychology and counseling at the University of Missouri–Kansas City and the study’s first author. Mehl spoke with the University of Arizona News about the accidental discovery, what it means for social connection, and why losing a few hundred words per day each year matters more than it seems.

Body-wide multi-omic counteraction of aging with GLP-1R agonism

Online now: Body-wide multi-omic counteraction of aging with GLP-1R agonism: (Cell Metabolism 37, 2362–2380.e1–e8; December 2, 2025)


Online now: (Cell Metabolism 37, 2362–2380.e1–e8; December 2, 2025)

Following publication, Steve Horvath and colleagues at the Clock Foundation alerted us to a platemap error in the DNA methylation (DNAm) data. Our investigation pinpointed the potential source of this error. We provided samples on 96-well plates in a row-wise orientation instead of the column-wise orientation specified in the Clock Foundation’s protocol. Subsequently, incorrect assignment of metadata for 36 samples (out of 459) that contributed data to the paper likely occurred during the transposition and rearrangement of a subset of samples on two incompletely filled plates prior to the assay. Working with Clock Foundation colleagues, we have corrected the metadata for 33 samples and discarded 3 samples for which we could not retrieve the metadata with total certainty.

This error impacted DNAm data for the following tissues:

High-throughput platform helps engineer fast-acting covalent protein drugs

A team led by principal investigators Bobo Dang and Ting Zhou at Westlake University/Westlake Laboratory have developed a high-throughput platform for engineering fast-acting covalent protein therapeutics. Their study, titled “A high-throughput selection system for fast-acting covalent protein drugs” published in Science, opens new avenues for next-generation biologics.

Covalent small-molecule drugs have shown great success in cancer therapy by forming irreversible bonds with their targets. This has inspired efforts to extend covalent strategies to protein therapeutics, especially engineered miniproteins. However, their development is limited by a kinetic mismatch: Miniproteins are rapidly cleared in vivo, whereas covalent bond formation is typically slow. In addition, high-throughput platforms for systematically optimizing covalent protein reactivity have been lacking.

To address this challenge, the researchers proposed that precise spatial positioning of chemical warheads within protein scaffolds could enable molecular preorganization, thereby accelerating covalent bond formation without increasing intrinsic reactivity.

Abstract: Genetic analysis of neurodegenerative diseases:

As part of the JCI’s Review Series on Neurodegeneration, Sonja W. Scholz and colleagues highlight key genomic technologies advancing diagnosis and research in neurodegeneration.


1Neurodegenerative Diseases Research Section, National Institute of Neurological Disorders and Stroke;

2Neurogenetics Branch, National Institute of Neurological Disorders and Stroke; and.

3Neuromuscular Diseases Research Section, National Institute on Aging, National Institutes of Health (NIH), Bethesda, Maryland, USA.

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