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Kevin Beaumont

Independent security researcher who analyzes malware, ransomware, and enterprise software flaws, often publishing detection guidance for defenders.

Known aliases

  • Beaumont

Current stories

securityConfirmed11 publishers

Ahold Delhaize keeps its stores open while some systems stay offline after a cyber incident

Ahold Delhaize, operator of more than 9,400 stores, confirmed it took some systems offline after a cybersecurity incident. A spokesperson was not immediately available to answer BleepingComputer's questions on scope or encryption.

Publishers:bleepingcomputer.com govinfosecurity.com newsroom.aholddelhaize.com nieuws.ah.nl nos.nl retaildetail.nl retailtrends.nl securityweek.com stirileprotv.ro thecyberexpress.com therecord.media

Perspective Coverage

11 publishers
Builder
Builder 4%
Operator
Operator 74%
Investor
Investor 22%

Reality

Evidence68
Adoption
Not scored
Hype gap+12
Incentives55
Confidence70
leadershipConfirmed2 publishers

Asos widens its breach disclosure after hackers share a data sample with the BBC

Asos says hackers took detailed profiles of potentially millions of customers, after first telling investors only basic contact details may have been accessed. The revision followed the attackers' approach to the BBC, so the people holding the records set the timing of the fuller disclosure.

Reality

Evidence68
Adoption
Not scored
Hype gap+10
Incentives60
Confidence65
securityOne report1 publisher

Public exploit for CVE-2026-88771 turns a quiet NetScaler zero-day into internet-wide attacks

A public proof-of-concept for CVE-2026-88771 pushed a stealthy NetScaler zero-day into mass exploitation, with fewer than 10% of exposed hosts patched. Citrix admits its detection script may miss intrusions, so exposed appliances should be treated as breached.

Reality

Evidence60
Adoption70
Hype gap+8
Incentives35
Confidence62
securityConfirmed11 publishers

Third NetScaler zero-day hits SAML appliances already patched against the first two

Citrix confirmed CVE-2026-88779, a third exploited NetScaler zero-day, after appliances patched against the previous two began rebooting under attack. The vendor rates it denial of service, though logged payloads and a researcher's honeypot point toward code execution.

Perspective Coverage

11 publishers
Builder
Builder 19%
Operator
Operator 68%
Investor
Investor 13%

Reality

Evidence78
Adoption
Not scored
Hype gap+20
Incentives50
Confidence70
securityConfirmed5 publishers

Defender's SYSTEM race is back: ShieldBreak PoC says Microsoft's July fix never held

A researcher claims a 100% reliable bypass of the Malware Protection Engine fix for CVE-2026-50656 on Windows 11 25H2 and Server 2025. There is no second patch to apply.

Perspective Coverage

5 publishers
Builder
Builder 23%
Operator
Operator 65%
Investor
Investor 12%

Reality

Evidence55
Adoption
Not scored
Hype gap+35
Incentives60
Confidence50
productConfirmed2 publishers

CISA wants NetScaler owners to check for intruders before installing Citrix's zero-day fixes

Citrix has fixed two NetScaler ADC and Gateway flaws, each rated 9.5 out of 10, that attackers were exploiting before any patch existed. CISA wants owners to look for signs of compromise first because the update can erase the evidence, so the upgrade comes second.

Reality

Evidence72
Adoption
Not scored
Hype gap+5
Incentives
Not scored
Confidence70
securityConfirmed3 publishers

Attackers are exploiting two unpatched NetScaler RCE flaws, watchTowr says

watchTowr says attackers exploited two remote code execution flaws in Citrix NetScaler ADC and Gateway before any fix existed. The August patch for CVE-2026-19490 fixes a different bug, so every operator now has to decide whether to keep the box online and whether to assume it is breached.

Perspective Coverage

3 publishers
Builder
Builder 15%
Operator
Operator 73%
Investor
Investor 12%

Reality

Evidence55
Adoption
Not scored
Hype gap+10
Incentives35
Confidence60
investConfirmed3 publishers

Kiteworks asks customers to power down for nine hours to guard against zero-day attacks

Kiteworks told customers to shut its file-transfer servers for nine hours this weekend after a federal warning. The company says its current release fixes every known flaw, so the outage guards against one it does not know about.

Publishers:einpresswire.com heise.de techcrunch.com

Perspective Coverage

3 publishers
Builder
Builder 12%
Operator
Operator 63%
Investor
Investor 25%

Reality

Evidence60
Adoption50
Hype gap+25
Incentives65
Confidence55
securityConfirmed5 publishers

FalconFlank PoC turns CrowdStrike's macro cleanup into a local privilege escalation

Chaotic Eclipse published working code that abuses Falcon's Office macro removal on fully patched Windows 11 25H2 and Server 2025. It is the fourth endpoint product the researcher has dropped exploit code for, and no CrowdStrike response is on record.

Perspective Coverage

5 publishers
Builder
Builder 36%
Operator
Operator 51%
Investor
Investor 13%

Reality

Evidence70
Adoption
Not scored
Hype gap+10
Incentives55
Confidence68
buildOne report1 publisher

Kiteworks asks customers to pull servers offline on unspecified law-enforcement intelligence

Kiteworks has told customers to shut down servers over a possible attack, and Heise reports a six-hour worldwide window starting Saturday. Its 9.5.1 update fixes only known flaws, so self-hosted operators are weighing downtime against a threat the company has not described.

Reality

Evidence50
Adoption
Not scored
Hype gap+10
Incentives55
Confidence55
productOne report1 publisher

One iLands agent tried a Mastodon signup 19 times before it asked the admin politely

Ars Technica reports that agents from the startup iLands are hitting registration forms and writers' inboxes, and that their unsolicited email only started carrying an unsubscribe option after recipients complained to the FTC.

Publishers:arstechnica.com

Reality

Evidence45
Adoption30
Hype gap+18
Incentives65
Confidence52
buildOne report1 publisher

A researcher is timing zero-days to Patch Tuesday, and the monthly cadence has no reply

Ten drops since April 2026, the latest handing any local user SYSTEM on fully patched Windows 11. The next scheduled fix can be 28 days out, so mitigation has to be a day-one job.

Publishers:dev.to

Reality

Evidence32
Adoption36
Hype gap+18
Incentives48
Confidence34