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WHAT IS EC2 INSTANCE ATTESTATION

Nitro enclaves were introduced in 2020 to provide a trusted execution environment for security-sensitive applications. However, application development was more complex due to the execution environment's limitations. Last year, AWS launched EC2 instance attestation, which extends the security enclave to the full instance, enabling more use cases and improving usability at the cost of greater effort to secure the instance and increased deployment complexity. This post walks through the process of creating an application running on an EC2 instance with attestation, including a GitHub Actions workflow to build a hardened, attestable AMI.

2026.03.02
links.tldrnewsletter.com5 min readTLDR InfoSec

DEMYSTIFYING ZERO TRUST

This part of the UK's NCSC multi-part guide on implementing zero trust in an enterprise focuses on defining zero trust beyond the buzzword or a specific product. Zero trust defines a strategic shift where users are continually authenticated as opposed to a point-in-time authentication at the beginning of a session. It implies a defense in depth approach where controls are layered in a system and may work in conjunction with existing systems or replace them.

2026.03.02
ncsc.gov.uk5 min readTLDR InfoSec

Sponsored

STEP INSIDE THE BUSINESS OF MODERN CYBERCRIME

On March 18, Huntress [5] hosts _declassified [6], a live, raw intel drop on the dark economy of cybercrime, where John Hammond joins YourTuber Jim Browning to show you exactly what cybercriminal organizations look like.

2026.02.27
huntress.comSponsorTLDR InfoSec

GOOGLE API KEYS WEREN'T SECRETS. BUT THEN GEMINI CHANGED THE RULES

Truffle Security discovered that enabling the Gemini API on a Google Cloud project silently grants existing API keys, including those publicly embedded in client-side JavaScript for services like Maps and Firebase, access to sensitive Gemini endpoints (CWE-1188, CWE-269). A scan of the November 2025 Common Crawl dataset identified 2,863 live Google API keys vulnerable to this privilege escalation, affecting major financial institutions, security companies, and Google itself. Organizations should audit all GCP projects for the Generative Language API, restrict or rotate any unrestricted or publicly exposed keys, and verify that no Gemini-capable keys are embedded in client-side code or public repositories.

2026.02.27
trufflesecurity.com10 min readTLDR InfoSec

MALICIOUS NEXT.JS REPOS TARGET DEVELOPERS VIA FAKE JOB INTERVIEWS

Microsoft discovered Trojanized Next.js repositories linked to North Korea's Lazarus APT that deliver backdoors through fake job-recruitment coding challenges, achieving RCE and persistent C2 access on developer machines. The repositories exploit VS Code workspace automation via malicious .vscode/tasks.json files or embed obfuscated loaders in build assets that fetch attacker-controlled JavaScript at runtime. Security teams should enforce strict IDE trust policies, monitor for anomalous Node.js outbound connections, and treat developer workflows as a privileged attack surface.

2026.02.27
links.tldrnewsletter.com3 min readTLDR InfoSec

ABUSING CORTEX XDR LIVE TERMINAL AS A C2 - INFOGUARD LABS

InfoGuard researchers demonstrated that Palo Alto's Cortex XDR Live Terminal feature can be abused as a pre-installed, EDR-trusted C2 channel, offering command execution, file transfer, and evasion capabilities through traffic that blends natively into enterprise network flows. The attack exploits a trivial URL validation flaw in cortex-xdr-payload.exe and the absence of mutual authentication or cryptographic command signing, allowing attackers to redirect connections to their own infrastructure via cross-tenant hijacking or a custom WebSocket server. Defenders should monitor for cortex-xdr-payload.exe spawned by any parent process other than cyserver.exe, while Palo Alto's claimed fix in versions 8.7-8.9 was not confirmed effective as of February.

2026.02.27
labs.infoguard.ch7 min readTLDR InfoSec

NEW AIRSNITCH ATTACK BREAKS WI-FI ENCRYPTION IN HOMES, OFFICES, AND ENTERPRISES

AirSnitch exploits low-level Wi-Fi behavior to bypass client isolation, enabling bidirectional MitM from any SSID on the same AP against popular consumer and enterprise gear. Attackers can steal cookies, credentials, and RADIUS secrets, pivot between guest and corporate networks, and poison DNS, challenging assumptions about guest Wi-Fi safety and pushing networks toward stricter zero‑trust segmentation and careful AP/VLAN design.

2026.02.27
arstechnica.com9 min readTLDR InfoSec

THE POST-RAMP ERA: ALLEGATIONS, FRAGMENTATION, AND THE REBUILDING OF THE RANSOMWARE UNDERGROUND

In January 2026, the FBI-led seizure of the RAMP forum dismantled a central hub for ransomware coordination but mainly shattered trust and pushed actors into more fragmented spaces, such as the closed, pay-to-enter T1erOne and the open forum Rehub. Competing narratives about leaked RAMP data and possible insider abuse have reinforced fears of honeypots, driving a shift toward smaller, tightly vetted communities and parallel use of low-barrier platforms.

2026.02.27
rapid7.com9 min readTLDR InfoSec

AUTOPIFF

AutoPiff is a semantic analysis engine that automates the detection of security-relevant changes in Windows kernel driver patches using 58 YAML-based rules across 22 vulnerability categories, including use-after-free fixes, bounds check additions, and IOCTL input validation. The framework runs as a Karton microservice pipeline integrating Ghidra decompilation, function matching, call-graph reachability analysis, and exploitability scoring to reduce manual driver pair analysis from 4-12 hours to under 5 minutes. Designed for silent patch detection and 1-day vulnerability research, it tracks 50+ dangerous API sinks and alerts on high-scoring findings via Telegram.

2026.02.27
github.comGitHub repositoryTLDR InfoSec

GAMBIT SECURITY (PRODUCT LAUNCH)

Gambit Security's AI-powered resilience platform, Balens, maps environments, security products, and backups to uncover gaps, validate recovery paths in real-time, and ensure business continuity against ransomware and disruptions.

2026.02.27
gambit.securityTLDR InfoSec

THENEWOIL

A project dedicated to teaching beginners and non-tech-savvy people about digital privacy and cybersecurity.

2026.02.27
github.comGitHub repositoryTLDR InfoSec

NEVER BUY A .ONLINE DOMAIN

A developer's .online domain was suspended via serverHold by registry operator Radix after Google Safe Browsing flagged the site, with no prior notification or grace period. The suspension created a Catch-22 where Google required DNS-based domain verification to review the flag, but the registry refused to reactivate DNS until Google removed it. The incident highlights the risks of non-.com TLDs with aggressive abuse policies and reinforces the importance of pre-registering domains in Google Search Console and adding uptime monitoring even for simple landing pages.

2026.02.27
0xsid.com4 min readTLDR InfoSec

GOOGLE CATCHES BEIJING SPIES USING SHEETS TO SPREAD ESPIONAGE ACROSS 4 CONTINENTS

Google Threat Intelligence disrupted UNC2814, a China-linked espionage group that compromised 53 victims across 42 countries by targeting telecoms and government organizations with a novel backdoor called Gridtide that abuses Google Sheets API for C2 communication. The group, tracked since 2017, escalated privileges via SSH lateral movement and deployed SoftEther VPN Bridge for persistent encrypted connections, with infrastructure dating back to July 2018. Google terminated all attacker-controlled Cloud Projects, disabled known infrastructure, and revoked the Sheets API access used for C2 operations.

2026.02.27
theregister.com3 min readTLDR InfoSec

THE BLAST RADIUS PROBLEM: STOLEN CREDENTIALS ARE WEAPONIZING AGENTIC AI

IBM X-Force data shows high volumes of unauthenticated vulnerabilities and a surge in infostealer‑driven credential theft, including hundreds of thousands of stolen ChatGPT logins. Attackers use AI and agentic systems to expand blast radius, pivot through supply chains, and blur criminal and nation‑state tradecraft.

2026.02.27
links.tldrnewsletter.com2 min readTLDR InfoSec

Sponsored

TOOL OVERLOAD GOT YOUR HEAD SPINNING?

Tech stack complexity is out of control, and the last thing you need is a bigger ‘stack'. Microsoft Azure gives you a unified view of applications, cloud resources, and AI—so you can ship more software

2026.02.27
links.tldrnewsletter.comSponsorTLDR InfoSec

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Between chasing unsanctioned apps and fielding hundreds of tickets daily, it's no wonder IT teams are stretched thin. But 1Password SaaS Manager helps IT take control of their rapidly expanding SaaS landscape.

2026.02.26
1password.comSponsorTLDR InfoSec

CRITICAL VULNERABILITY IN META MANUS AI AGENT ENABLES ZERO-CLICK INDIRECT PROMPT INJECTION

SilentBridge is a family of CVSS 9.8 zero-click indirect prompt injection vulnerabilities in Meta's Manus AI agent that allowed hidden instructions in web pages, search results, and documents to hijack high-privilege agent capabilities, including Gmail access, code execution, and root-level container control. Researchers demonstrated full exploit chains in which benign actions, such as “summarize this page,” triggered Gmail data exfiltration, the establishment of a reverse shell with passwordless sudo escalation, public exposure of internal code-server tooling, and cross-tenant media access via unauthenticated CDN paths. Manus deployed mitigations following responsible disclosure, but the findings highlight a systemic trust-boundary failure affecting any agentic AI platform that allows untrusted content to influence privileged tool invocation without isolation or user consent.

2026.02.26
aurascape.ai25 min readTLDR InfoSec

CARGURUS DATA BREACH AFFECTS 12.5 MILLION ACCOUNTS

Automotive marketplace CarGurus has confirmed a security incident in which 12.5 million user accounts were exposed, including names, email addresses, phone numbers, physical addresses, financial prequalification data, and some dealer information. The researchers attributed the hack to the ShinyHunters group, known for high‑impact social engineering attacks against major enterprises and universities.

2026.02.26
techcrunch.com2 min readTLDR InfoSec

WYNN RESORTS TAKES ATTACKER'S WORD FOR IT THAT STOLEN STAFF DATA WAS DELETED

Wynn Resorts confirms ShinyHunters stole extensive employee data, including personal and HR details, after exploiting Oracle PeopleSoft and valid credentials since 2025. The company says the crooks claim to have deleted the data and offers staff credit monitoring. Still, experts stress ransomware crews rarely erase stolen records and view such “deletion” promises as indicators of a completed extortion deal.

2026.02.26
theregister.com2 min readTLDR InfoSec

NEW MALICIOUS NPM PACKAGE “AMBAR-SRC” TARGETS DEVELOPERS WITH OPEN SOURCE MALWARE

The malicious npm package “ambar-src” accumulated ~50,000 downloads in just three days by typosquatting the popular “ember-source” package and abusing npm's preinstall script hook to execute code without any explicit import. The package deployed OS-specific open-source malware payloads, including encrypted shellcode on Windows, a Golang-based reverse SSH shell on Linux, and the Apfell/MythicAgents payload on macOS, all communicating via Yandex Cloud functions for C2 evasion. Organizations should audit dependencies for this package, treat any system where it was installed as fully compromised, and rotate all secrets from a separate machine.

2026.02.26
tenable.com9 min readTLDR InfoSec

LARGE-SCALE ONLINE DEANONYMIZATION WITH LLMS

Modern LLM agents can deanonymize users at scale by linking pseudonymous posts to real-world identities across platforms like Hacker News, Reddit, and LinkedIn. Using proxy tasks such as cross-platform account matching and splitting single accounts into multiple identities shows that search-plus-reasoning agents can re-identify users with high precision, and that performance degrades slowly even as candidate pools reach tens of thousands, implying platform-scale feasibility.

2026.02.26
simonlermen.substack.com8 min readTLDR InfoSec

JA4 FINGERPRINTING AGAINST AI SCRAPERS: A PRACTICAL GUIDE

JA4 fingerprinting can be incredibly effective for detecting AI scrapers, as modifying the fingerprint requires recompiling the full TLS stack, unlike other methods, such as behavioral detection, that newer AI agents can mimic. JA4 fingerprints for the ClientHello and HTTP Headers (JA4H) can be combined with traditional systems to build a defense-in-depth detection system, which can then forward logs to a SIEM. This post includes code samples for the detection logic as well as fingerprints for several common libraries and tools.

2026.02.26
webdecoy.com10 min readTLDR InfoSec

Sponsored

SECURE AWS WORKLOADS WITH ZERO-TRUST AUTOMATION

Stop managing certificates manually. Palo Alto Networks VM-Series NGFW [12] automates TLS in Amazon EKS, enforces zero-trust policies that adapt to AWS tags, and blocks threats in real time with AI/ML. Launch your free trial in AWS Marketplace [13].

2026.02.26
pages.awscloud.comSponsorTLDR InfoSec

ENVEIL

enveil is a Rust CLI tool that prevents AI coding assistants from reading plaintext secrets by replacing .env values with encrypted ev:// references backed by a local AES-256-GCM store. Secrets are decrypted in memory using an Argon2id-derived key and injected directly into subprocess environments at launch, ensuring plaintext values never touch disk. The tool includes import, rotation, and tamper-detection capabilities, with 31 automated tests that cover all security invariants.

2026.02.26
github.comGitHub repositoryTLDR InfoSec

ASTELIA (PRODUCT LAUNCH)

Astelia is an AI-driven exposure management platform that maps enterprise environments, models attack paths, and prioritizes remediation of exploitable vulnerabilities.

2026.02.26
astelia.ioTLDR InfoSec

CONFUSABLE-VISION

An offline tool that renders Unicode confusable character pairs across system fonts, measures visual similarity using SSIM, and outputs scored JSON artifacts.

2026.02.26
github.comGitHub repositoryTLDR InfoSec

DISCORD CUTS TIES WITH PETER THIEL-BACKED VERIFICATION SOFTWARE AFTER ITS CODE WAS FOUND TIED TO US SURVEILLANCE EFFORTS

Discord terminated its partnership with identity verification vendor Persona after researchers discovered nearly 2,500 accessible files on a FedRAMP government endpoint, revealing the software performs 269 distinct verification checks, including facial recognition against watchlists, politically exposed persons screening, and adverse media categorization across terrorism and espionage categories. Persona's CEO called the exposure publicly accessible front-end code rather than a vulnerability, but the discovery follows a 2025 breach at another Discord verification vendor that exposed government IDs of over 70,000 users. The incident underscores growing supply chain privacy risks in age verification systems, with Persona still serving OpenAI, Lime, and Roblox despite the controversy.

2026.02.26
fortune.com5 min readTLDR InfoSec

CLAUDE CODE FLAWS ALLOW REMOTE CODE EXECUTION AND API KEY EXFILTRATION

Researchers have uncovered three Claude Code vulnerabilities that enable remote code execution and silent API key exfiltration when developers open malicious repositories, abusing hooks, MCP servers, and environment variables. Exploitation can leak Anthropic API keys, redirect authenticated traffic, and modify cloud data, shifting the threat model from just running untrusted code to merely opening untrusted AI-assisted projects.

2026.02.26
thehackernews.com2 min readTLDR InfoSec

WHY ‘CALL THIS NUMBER' TOAD EMAILS BEAT GATEWAYS

Telephone-oriented attack delivery (TOAD) accounted for nearly 28% of all gateway-bypassing email detections across multiple enterprise environments between December 2025 and February 2026. These emails contain only a phone number as the payload, typically impersonating billing notifications from brands like PayPal or DocuSign, making them indistinguishable from legitimate business communications that secure email gateways filter out. The average detected attack combined more than four evasion techniques simultaneously, with over 1,400 unique evasion combinations tracked, representing a 130% increase over the previous study period.

2026.02.26
links.tldrnewsletter.com4 min readTLDR InfoSec

IRAN'S MUDDYWATER TARGETS ORGS WITH FRESH MALWARE AS TENSIONS MOUNT

Iran's MuddyWater (TA450) launched Operation Olalampo, a spear-phishing campaign delivering multiple novel malware strains — including the Rust-based Char backdoor using Telegram for C2, the GhostFetch/GhostBackDoor loader chain, and the HTTP_VIP downloader — against organizations across the Middle East and Africa. Group-IB identified signs of AI-assisted development in Char's command handlers, including debug strings containing emojis that were likely left unsanitized in LLM-generated code segments. Defenders should leverage the published IoCs, YARA rules, and EDR rules to detect activity, while monitoring for unauthorized AnyDesk deployments and Telegram-based C2 traffic.

2026.02.25
links.tldrnewsletter.com4 min readTLDR InfoSec

THE DJI ROMO ROBOVAC HAD SECURITY SO POOR, THIS MAN REMOTELY ACCESSED THOUSANDS OF THEM

A security researcher found that DJI's Romo robot vacuum lacked MQTT authentication, allowing any client to connect to DJI's servers and pull telemetry from roughly 7,000 devices across 24 countries. Live camera feeds, microphone access, 2D floor plans, and serial numbers were all available. In under 9 minutes, the researcher cataloged over 6,700 devices and collected more than 100,000 MQTT messages, revealing precise home layouts and approximate device locations via IP geolocation. DJI has reportedly closed the immediate access gap. Still, the deeper problem remains: the device-to-cloud channel trusts any authenticated session as a legitimate owner, a fundamental IoT authorization failure.

2026.02.25
theverge.com4 min readTLDR InfoSec

CONDUENT DATA BREACH GROWS, AFFECTING AT LEAST 25M PEOPLE

A ransomware attack on outsourcing giant Conduent has exposed personal data on at least 25 million people across multiple states in the US, including Oregon and Texas. Stolen information includes names, Social Security numbers, health insurance, and medical data.

2026.02.25
techcrunch.com2 min readTLDR InfoSec

A BUG IS A BUG, BUT A PATCH IS A POLICY: THE CASE FOR BOOTABLE CONTAINERS

The Linux kernel CNA now assigns CVEs to nearly every bug fix, often without CVSS scores, and that decision has shattered the classic “patch anything above 7.0 within 30 days” compliance model. Security teams must now pick between expensive manual triage and just patching everything fast. Bootable containers (bootc) offer a middle path: they package the entire OS (kernel, drivers, and user-space) as an immutable container image with atomic updates and automatic rollback when health checks fail, which kills the reboot anxiety that causes update fatigue. The real shift is moving vulnerability management away from spreadsheet-driven CVSS triage toward build-file-scoped scanning of minimal images, turning patching into a routine CI/CD pipeline step rather than a high-stakes manual event.

2026.02.25
tuananh.net3 min readTLDR InfoSec