Cybersecurity Category

Rietta's cybersecurity posts cover phishing defense, secure passwords and passphrases, and practical web application security and performance guidance.

10/20/2026

Built an App with AI? Get a Security Review Before Launch

Non-developers now build working custom apps with AI assistants. A few hours of expert whiteboard review before launch can save a lot of grief later.

Read More: Built an App with AI? Get a Security Review Before Launch

09/16/2026

Non-Repudiation in Cybersecurity

Non-repudiation is a foundational security property among the five pillars of Information Assurance. It is at natural odds with Privacy and must be balanced.

Read More: Non-Repudiation in Cybersecurity

09/14/2026

RubyGems Open Source Supply Chain Security and OpenAI

OpenAI agents attacked RubyGems in May 2026. Why automated attackers have collapsed the window to patch a critical CVE from weeks to hours.

Read More: RubyGems Open Source Supply Chain Security and OpenAI

09/04/2026

Government Rails Site Hit Hours After CVE Patch

Rietta patched a government client's Ruby on Rails site within hours of a 9.5 CVSS ActiveStorage CVE. Exploit attempts began before business hours resumed.

Read More: Government Rails Site Hit Hours After CVE Patch

08/18/2026

Generate OpenSSL Elliptic Curve Key Pair from the Command Line

How to generate an OpenSSL elliptic curve (P-256) key pair from the command line, and why NIST-backed ECC beats scaling RSA past 3072-bit.

Read More: Generate OpenSSL Elliptic Curve Key Pair from the Command Line

08/15/2026

22 Years on Firefox, and Today I'm Finally All In

Going all in with Mozilla Firefox as a cybersecurity professional in 2026 and keeping my workstation and iOS devices in sync.

Read More: 22 Years on Firefox, and Today I'm Finally All In

07/28/2026

Threat Modeling for ADA/WCAG Compliance

An evidence-based approach to ADA Title II and WCAG document audits, using threat modeling and risk scoring to treat accessibility as a governance concern.

Read More: Threat Modeling for ADA/WCAG Compliance

07/25/2026

The Five Pillars of Information Security (And Why We Audit Accessibility)

The five pillars of information assurance: confidentiality, integrity, availability, authentication, and non-repudiation, and why accessibility is part of it.

Read More: The Five Pillars of Information Security (And Why We Audit Accessibility)

04/16/2025

The Imminent Funding Lapse of the CVE Database: A Cybersecurity Crisis

Breaking news: the CVE program, crucial for tracking cyber threats, faced a funding lapse. CISA extended its contract for now; the long-term impact is unclear.

Read More: The Imminent Funding Lapse of the CVE Database: A Cybersecurity Crisis

04/04/2025

Understanding Signal Messaging App Security: Is Encryption Enough?

Signal security explained: how end-to-end encryption works, threat models, and why security is more than encryption. Understand Signal's strengths & limits.

Read More: Understanding Signal Messaging App Security: Is Encryption Enough?