Testing
Most API fuzzing tools throw random bytes at endpoints and hope for 500 errors. RESTler and Schemathesis are different: they understand your API's structure from an OpenAPI or Swagger spec and generate semantically valid but edge-case inputs. This makes them far more effective at finding real bugs
Testing
Fuzzing has found more real-world security vulnerabilities than almost any other technique. The Heartbleed bug, dozens of Chrome V8 exploits, hundreds of ImageMagick CVEs — all found by fuzzers. This isn't coincidence. Fuzzing excels precisely at the class of bugs that matter most in security: edge cases in
SonarQube
Security hotspots are code locations that require a human security review — they might be fine, or they might be vulnerabilities. Unlike vulnerabilities (which are confirmed issues), hotspots are flagged for review. SonarQube tracks their review status: TO_REVIEW, ACKNOWLEDGED, SAFE, or FIXED. Key Takeaways Hotspots ≠ Vulnerabilities. A vulnerability is a
Testing
Fintech applications face a distinctive compliance burden: multiple overlapping frameworks (PCI-DSS, SOC 2, GLBA, sometimes GDPR or CCPA) that each require evidence of specific technical controls. A compliance test suite — a structured collection of automated tests organized by compliance requirement — is the most sustainable way to generate that evidence
Testing
Most security bugs in smart contracts aren't found by reading code — they're found by systematically breaking assumptions. A function you expected to always return a positive number returns zero under specific conditions. An invariant you assumed held under normal conditions breaks when two calls happen in
Testing
SOC 2 has become the de facto trust signal for B2B SaaS companies. Enterprise buyers require it; without it, deals stall in security review. The American Institute of CPAs (AICPA) defines SOC 2 around five Trust Service Criteria (TSC): Security, Availability, Processing Integrity, Confidentiality, and Privacy. Most companies pursue Security
Testing
SOC 2 (System and Organization Controls 2) is a framework developed by the American Institute of CPAs (AICPA) for evaluating how service organizations manage customer data. For software companies, especially those selling to enterprise customers, a SOC 2 report is often a prerequisite for closing deals. Understanding what auditors actually
Testing
After Log4Shell, the security community spent considerable energy debating how attackers got a vulnerable library into so many systems. The answer is uncomfortable: developers added it as a dependency, trusting that upstream had done the right thing. That trust had no cryptographic backing, no audit trail, and no way to
Testing
A cryptographic implementation that is mathematically correct can still be completely broken. If AES-256 takes 1μs longer when the key byte is 0xFF, an attacker who can make 10 million requests can recover that byte. This is a timing side-channel. If your RSA implementation accesses different cache lines
Testing
DevSecOps applies the shift-left principle to security: instead of a security review at the end of a release cycle, security checks run continuously throughout development. This post covers the practical tools and pipeline configuration for shifting security left — catching vulnerabilities before they reach production. Key Takeaways Security review at
Embedded
```tldr Embedded firmware fuzzing runs protocol parsers and data handlers on the host (not on-target) with AFL++ or libFuzzer providing random mutated inputs. Vulnerabilities found: buffer overflows, integer overflows, null dereferences, and infinite loops in parsing code — all without a physical device. ``` ```takeaways Fuzz the parser, not the hardware.
Testing
Security controls fail silently. A broken authentication check doesn't throw an exception—it returns 200 where it should return 403. A rate limiter with an off-by-one error doesn't log a warning—it just lets the attack through. And because security failures are often hard