Safeguard
Resources

Supply Chain Security, in plain English.

Deep dives, practical guides, and incident analyses from engineers who build Safeguard. No fluff, no vendor FUD — just what you need to ship secure software.

All (5118)Vulnerability Analysis (12009)Security Guides (5118)Application Security (3306)Developer Tools (2961)Compliance (2830)AI Security (1718)Supply Chain (1423)Supply Chain Security (1023)Industry Analysis (1005)Research (585)Security (532)DevSecOps (511)Product (505)Tool Comparison (454)Open Source Security (417)Incident Analysis (399)AppSec (309)Cloud Security (300)Container Security (286)Software Supply Chain (282)Best Practices (264)Open Source (252)Buyer's Guides (217)Software Supply Chain Security (182)Vulnerability Management (150)Regulatory Compliance (144)Ranking (116)Concepts (116)Containers (100)Supply Chain Attacks (93)SBOM (77)Vulnerabilities (73)Threat Intelligence (66)Infrastructure Security (65)FAQ (50)Tools (50)SBOM & Compliance (41)Comparisons (32)Engineering (29)Licensing (26)Tutorials (24)Ransomware (24)SecOps (22)Guides (22)Kubernetes Security (22)Regulation (20)Vulnerability Guides (20)Industry Guides (19)Compliance & Regulations (18)Case Studies (18)Emerging Technology (17)Solutions (17)Tool Reviews (16)Agent Security (16)Risk Management (16)Threat Research (16)Vulnerability Response (16)Cryptography (15)Incident Response (15)Security Concepts (15)Compliance & Frameworks (15)Identity Security (15)Industry Events (14)Security Strategy (13)Frameworks (12)Data Breach (11)Dependency Security (11)Web Security (11)Security News (10)Career (10)Culture (9)Company (9)Enterprise (9)Vulnerability Research (8)Standards (8)Architecture (8)Strategy (8)Industry Insights (7)How-To Guide (7)Network Security (7)Industry Trends (7)Dependency Management (7)Zero-Day Exploits (7)Secure Development (7)Security Operations (6)Organizational Security (6)Vendor Comparison (6)Developer Security (6)Industry (6)Dev Practices (6)Breach Analysis (5)Code Security (5)Cryptocurrency Security (4)Offensive Security (4)Product Launch (4)Tool Comparisons (4)Policy (4)Mobile Security (4)Social Engineering (3)Hardware Security (3)Healthcare Security (3)Startup Security (3)Build Security (3)API Security (3)Governance (3)Regional Security (3)Analysis (3)Policy & Compliance (3)Security Management (2)Security Architecture (2)SBOM Standards (2)SBOM and Compliance (2)Industry News (2)DeFi Security (2)Zero-Day Analysis (2)Release (2)Security Culture (2)Threat Actors (2)Data Security (1)Events (1)Tools & Platforms (1)Tools & Techniques (1)Architecture Security (1)Safeguard runs on VR and mixed reality headsets. Where a spatial view of your software estate helps, and where a plain screen is still better. (1)Healthcare (1)PKI Security (1)Threat Modeling (1)Career Development (1)Browser Security (1)SBOM & Standards (1)Incident Postmortem (1)Kubernetes (1)Emerging Threats (1)Product Update (1)Nation-State Threats (1)Lifecycle Management (1)Credential Attacks (1)Runtime Security (1)Privacy (1)Threat Analysis (1)Technical (1)Language Security (1)Privacy & Security (1)Business Continuity (1)

Articles

RSS feed
Security Guides

How to plan DNS TTLs before a migration or cutover

Lower DNS TTLs before a cutover so caches expire fast, then raise them after. A step by step plan, with the limits of what TTL can and cannot control.

Oct 18, 20264 min read
Security Guides

Recursive vs authoritative DNS servers: who answers what

Recursive resolvers look names up for clients, authoritative servers hold the zone data. How the two roles work and where each can fail or be attacked.

Oct 18, 20264 min read
Security Guides

DNS rebinding: why checking a hostname once does not stop SSRF

Allow-listing a domain does not stop DNS rebinding. Resolve, check every address, and connect only to the validated IP. Here is the pattern to follow.

Oct 18, 20263 min read
Security Guides

Why a new DNS record is still not found: negative caching

Resolvers cache 'does not exist' answers too. Learn how the SOA value sets that delay, why a new record can stay invisible, and how to avoid it.

Oct 18, 20264 min read
Security Guides

DNS delegation explained: NS records, glue and the two server rule

How a parent zone hands authority to a child with NS records, why glue records are needed, and why every zone should live on two name servers.

Oct 18, 20264 min read
Security Guides

DMARC subdomain policy: sp and np tags explained

How DMARC treats subdomains: the sp tag for existing ones, the new np tag for non-existent ones, and the inheritance rules that decide which policy applies.

Oct 18, 20263 min read
Security Guides

DMARC rollout plan: from p=none to quarantine to reject

A staged DMARC rollout: start at p=none with reports, find every sender, move to quarantine, then reject. With timing guidance from RFC 9989.

Oct 18, 20263 min read
Security Guides

DMARC is now RFC 9989: what changed from RFC 7489

RFC 9989 (May 2026) makes DMARC a Standards Track document and obsoletes RFC 7489. See what changed: DNS tree walk, t and np tags, and pct removed.

Oct 18, 20263 min read
Security Guides

DMARC pct tag removed: what the new t tag does instead

RFC 9989 drops the DMARC pct tag for gradual enforcement and adds t=y for testing. Learn why pct was removed and how to phase in a stricter policy.

Oct 18, 20263 min read

Stay informed

Weekly insights on software supply chain security, delivered to your inbox.

Self-healing security runs on Safeguard.

Your first fix PR is minutes away.

Book a demoGet started

No sales call required, even your agent can complete the purchase over MCP.