CyberBytes Daily

Trending cyberattacks, explained simply.

Security incidents, explained for the people who have to explain them.

We break down a real cyberattack: how it worked, who was affected, and why it matters, in plain language, with visuals. No breathless headlines. A clear mental model you can hold in your head and pass to someone else.

Every post has three levels: a 30-second overview, a full narrative, and a technical deep dive. Read as much or as little as you need.

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How a security tool's own cleanup routine became a zero-day path to full system control

critical vulnerabilityJune 10, 20267 min read

How a forged XML document can pass a cryptographic signature check and impersonate any SAP user

critical vulnerabilityJune 9, 20266 min read

How a flaw in Windows' core networking code could let attackers spread automatically across the internet

critical vulnerabilityJune 9, 20266 min read

How a single config file turned every AI coding agent into a credential harvester

supply chain attacksJune 5, 20266 min read

How a single UDP packet to any unpatched domain controller hands attackers the keys to every system in your network

critical vulnerabilityJune 1, 20266 min read

How a stolen session cookie turned a security certification into a weapon

supply chain attacksJune 1, 20267 min read

How attackers turned AI coding assistants into silent credential thieves across three package registries

supply chain attacksMay 24, 20267 min read

How a poisoned VS Code extension gave attackers access to thousands of a company's internal repositories

supply chain attacksMay 18, 20268 min read

How a 'patched' Windows driver flaw from 2020 came back as a working exploit on fully patched systems in 2026

critical vulnerabilityMay 13, 20267 min read

How an AI model found a hidden 2FA bypass and wrote the exploit before any scanner could see it

ai securityMay 11, 20266 min read

How attackers poisoned a build pipeline's cache to publish 84 malicious packages with valid security certificates

supply chain attacksMay 11, 20267 min read

How an AI agent turned a notebook vulnerability into a database breach in under one hour

ai securityMay 10, 20266 min read

How a natural-language prompt became a shell command inside a company's AI agent

ai securityMay 7, 20266 min read

How attackers bypassed a VPN's password check entirely by exploiting a 1998-era protocol

critical vulnerabilityMay 7, 20266 min read

How attackers used a company's own firewall to reach inside its network without a password

critical vulnerabilityMay 6, 20266 min read

How attackers read your MFA codes from a Windows database without ever touching your phone

identityMay 5, 20266 min read

How a 732-byte script earned root on every major Linux distribution by corrupting files that never changed on disk

critical vulnerabilityApril 29, 20267 min read

How a missing function call let attackers bypass authentication on 1.5 million web hosting control panels

critical vulnerabilityApril 28, 20266 min read

How a single quote in an API request let attackers drain every AI provider credential from a company's gateway

critical vulnerabilityApril 26, 20266 min read

How a new AI agent role in Microsoft Entra ID let any user silently take over the entire tenant

identityApril 23, 20267 min read

How a robotics AI framework's own serialization design left every connected robot open to remote takeover

critical vulnerabilityApril 23, 20266 min read

How attackers poisoned a security scanner to steal the secrets it was scanning

supply chain attacksApril 22, 20266 min read

How a compromised security scanner let attackers publish a credential-stealing worm under Bitwarden's own name

supply chain attacksApril 22, 20266 min read

How a stolen npm token turned legitimate packages into a self-spreading credential worm with an unkillable command server

supply chain attacksApril 21, 20266 min read

How a model file you downloaded can execute code on your AI server before you run a single prompt

ai securityApril 20, 20266 min read

How a game script on a vendor's laptop gave attackers the keys to a $9 billion platform's customer secrets

supply chain attacksApril 19, 20266 min read

How attackers used a company's own device management tool to wipe 80,000 computers overnight

nation-stateApril 16, 20267 min read

How a broken certificate check let anyone impersonate any user on Cisco Webex

critical vulnerabilityApril 16, 20265 min read

How attackers turned a maintainer's stolen npm token into a backdoor in 100 million weekly downloads of Axios

supply chain attacksApril 15, 20266 min read

How a routine security update disabled the integrity check protecting every login in a web framework used by hundreds of millions of apps

critical vulnerabilityApril 14, 20266 min read

How attackers used Windows Defender itself to gain full system control, then hid the damage from every dashboard

critical vulnerabilityApril 3, 20266 min read

How a missing 27-character code fix left thousands of web servers open to unauthenticated takeover

critical vulnerabilityMarch 30, 20266 min read

How a single git push command could have given an attacker access to millions of repositories on GitHub

critical vulnerabilityMarch 4, 20266 min read

How a phishing kit turned your MFA approval into an attacker's login

identityFebruary 16, 20267 min read

How a nation-state spy operation hid inside a ransomware extortion demand

nation-stateFebruary 1, 20266 min read

How a PDF profiled your system before deciding whether to attack it

critical vulnerabilityNovember 28, 20257 min read