Open source directory

Discover the best cybersecurity newsletters

A curated and actively maintained directory of newsletters covering security news, research, vulnerabilities, threat intelligence, cloud security, AI security, GRC, policy, and more.

  • Open source
  • Community maintained
  • Regularly reviewed
  • 1,300+ GitHub stars

28 newsletters found

Recommended newsletters

Adopt a slow-tech approach by reading only essential info on the AWS Security landscape — once a week, on Monday.

AWS SecurityWeeklyFree
R
Risky.Biz

Risky Business

Active

A weekly digest and analysis of the big stories shaping cyber policy, by Brett Winterford, Tom Uren, and Patrick Gray.

Policy and RegulationWeeklyFree

A free weekly newsletter about the business side of security — startups, ecosystem, venture capital, investing, and markets.

Cybersecurity Business & InvestmentWeeklyFree

All newsletters

Adopt a slow-tech approach by reading only essential info on the AWS Security landscape — once a week, on Monday.

AWS SecurityWeeklyFree
R
Risky.Biz

Risky Business

Active

A weekly digest and analysis of the big stories shaping cyber policy, by Brett Winterford, Tom Uren, and Patrick Gray.

Policy and RegulationWeeklyFree
TW
This Week in Security

Zack Whittaker

Active

A weekly tl;dr cybersecurity newsletter of all the major stuff you missed but really need to know. Sent every Sunday.

General Cybersecurity NewsWeeklyFree

A free weekly newsletter about the business side of security — startups, ecosystem, venture capital, investing, and markets.

Cybersecurity Business & InvestmentWeeklyFree
A
AdvisoryWeek

Pete Freitag

Active

A roundup of the security advisories published each week by major software vendors (Apple, Adobe, Microsoft, Oracle, and more).

Vulnerability ResearchWeeklyFree
BT
Active

A weekly, independent newsletter to capture the latest security news, tools, events, vulnerabilities, and threats in the cryptocurrency landscape.

Blockchain & Web3 SecurityWeeklyFree
GE
GRC Engineer

Ayoub Fandi

Active

The weekly newsletter engineering the future of the security GRC field, where leaders from the biggest tech companies improve their GRC programs.

GRCWeeklyFree
HF
Hive Five Newsletter

Pusha B (securibee)

Active

Sharing what matters in security. Every week securibee curates InfoSec news for web app security and bug bounties.

Application SecurityWeeklyFree
LW
Last Week in Security

Bad Sector Labs

Active

A summary of the interesting cybersecurity news, techniques, tools, and exploits from the previous week.

General Cybersecurity NewsWeeklyFree

A free newsletter recapping investing in the cybersecurity and privacy space, delivered weekly.

Cybersecurity Business & InvestmentWeeklyFree
RN
RTCSec Newsletter

Sandro Gauci

Active

A free monthly newsletter with commentary and news around VoIP and WebRTC security, covering both defensive and offensive real-time communications.

VoIP & RTC SecurityMonthlyFree
SN
Active

SANS offers three newsletters to keep you up-to-date on the latest cybersecurity news, attacks, vulnerabilities, and security awareness stories.

General Cybersecurity NewsWeeklyFree

Short summaries on the key topics you may have missed for the week — threat intelligence, trends, regulatory developments, and vulnerability news.

General Cybersecurity NewsWeeklyFree

Browse by category

Focused areas across the security field.

How newsletters are selected

Every submission is reviewed before publication. Inactive newsletters may be removed during periodic reviews.

  • The newsletter must be actively publishing.
  • It must contain meaningful cybersecurity content.
  • It should provide educational, analytical, technical, or professional value.
  • It should not primarily consist of promotional vendor content.
  • A recent issue or public archive must be verifiable.
  • It should have a clear topic or intended audience.

Built in the open

The directory is maintained publicly on GitHub. Community members can suggest newsletters, report inactive resources, and contribute improvements.

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