Best Cybersecurity Newsletters in 2025

Crypto-Gram is a monthly newsletter focused on security, technology, and people, covering topics like AI, cybersecurity, cryptography, and surveillance. Written for security professionals, policymakers, and individuals interested in security issues, it provides in-depth analysis, news, and commentary on the latest developments in the field. Features expert insights, research, and opinions with a professional and informative tone.

Securityish delivers a weekly digest of cybersecurity news, phishing alerts, and emerging threats, simplified for anyone to understand. It covers topics like data breaches, government cyberattacks, and AI-powered malware, providing readers with actionable insights to stay ahead of cyber threats. The tone is informative and easy to understand, making it accessible to both technical and non-technical readers. It's a must-read for individuals and organizations looking to stay informed about the latest cybersecurity trends and threats.

Phishing Stories delivers daily cyber attack stories and proven strategies to stay secure, covering topics like phishing scams, data breaches, and CEO fraud. Written for individuals and businesses looking to stay ahead of cyber threats, it provides in-depth analysis and actionable tips to protect against phishing attacks. Features real-life examples and expert insights with a professional and informative tone.

Content from security conferences weekly.

The RTCSec newsletter delivers monthly commentary and news on VoIP and WebRTC security, covering topics such as vulnerability roundups, security fixes, and research updates. Written for security professionals and developers, it provides in-depth analysis and insights on the latest security developments in the Real-time Communications space. Features technical details, exploit explanations, and security best practices with a professional and informative tone.

Shift Security Left delivers bi-weekly insights on application security, secure architecture, DevSecOps, cryptography, and incidents. Written for security engineers, developers, and builders, it provides curated links, in-depth analysis, and expert opinions on topics like Electron app vulnerabilities, cryptographic primitives, and malware analysis. The tone is informative, yet casual and humorous, making complex security topics accessible to a wide range of readers.

tl;dr sec is a weekly newsletter that delivers the best tools, talks, and resources in cybersecurity to over 90,000 security professionals. It covers topics such as AI-powered security, cloud security, and Kubernetes, with a focus on actionable insights and practical advice. The tone is professional and informative, with a focus on helping readers stay up-to-date with the latest developments in the field.

Advisory Week delivers a weekly curated email of security advisories from major software vendors, including Apple, Microsoft, Adobe, and more. Written for security professionals and developers, it provides a comprehensive overview of the latest security updates, vulnerabilities, and patches. Features a no-frills, data-driven approach to staying on top of security threats. Get organized and stay informed with one weekly email.