CyberSecurity

October’s Record Patch Tuesday: 1,411 Flaws, 3 Zero-Days and a New Way to Triage

October’s Record Patch Tuesday: 1,411 Flaws, 3 Zero-Days and a New Way to Triage

Guava Systems Editorial Team

October 21, 2026

More from CyberSecurity

CISA’s Latest KEV Update Reinforces Risk-Based Patch Prioritization

CISA’s Latest KEV Update Reinforces Risk-Based Patch Prioritization

CISA’s Latest KEV Update Reinforces Risk-Based Patch Prioritization

Guava Systems Editorial Team

October 19, 2026

Ink engraving-style conceptual illustration of a magnifying glass over circuits with balanced justice scales.

California serves OpenAI subpoena in AI cybersecurity investigation

California serves OpenAI subpoena in AI cybersecurity investigation

Guava Systems Editorial Team

October 2, 2026

Luminous blue and magenta prism within an abstract shield, representing controlled access to cybersecurity AI.

Google introduces Gemini 4 Argon with restricted cybersecurity access

Google introduces Gemini 4 Argon with restricted cybersecurity access

Guava Systems Editorial Team

October 1, 2026

Lime and blue paper-cut illustration of AI nodes inside layered boundaries watched by a separate security chip

NVIDIA launches Open Agent Safety Platform with software and hardware controls

NVIDIA launches Open Agent Safety Platform with software and hardware controls

Guava Systems Editorial Team

September 28, 2026

Shield and padlock protecting business email and servers.

How to Enable DKIM for a Microsoft 365 Custom Domain

How to Enable DKIM for a Microsoft 365 Custom Domain

Guava Systems Editorial Team

September 24, 2026

Shield and padlock protecting business email and servers.

How to Enable Defender for Office 365 Preset Security Policies

How to Enable Defender for Office 365 Preset Security Policies

Guava Systems Editorial Team

September 22, 2026

Identity badge and key connecting protected business devices.

How to Find and Back Up Your BitLocker Recovery Key

How to Find and Back Up Your BitLocker Recovery Key

Guava Systems Editorial Team

September 22, 2026

Padlock beneath an illustrated cloud with upward data-transfer arrows.

How to Protect Microsoft 365 Administrators With Phishing-Resistant MFA

How to Protect Microsoft 365 Administrators With Phishing-Resistant MFA

Guava Systems Editorial Team

September 22, 2026

Identity badge and key connecting protected business devices.

How to Set Up Passkeys for Microsoft 365 Work Accounts

How to Set Up Passkeys for Microsoft 365 Work Accounts

Guava Systems Editorial Team

September 22, 2026

Teal and rose paper collage of a shield, lantern and social-platform windows.

TikTok’s US Unit Joins Lantern Child-Safety Programme

TikTok’s US Unit Joins Lantern Child-Safety Programme

Guava Systems Editorial Team

September 22, 2026