RivasSec

Infrastructure. Security. Insight.

Field notes on infrastructure security, cloud hardening, Kubernetes, IAM, and OSINT by RivasSec.

Latest posts

IAM Blast Radius Is an Architecture Problem, Not a Policy Problem

Most IAM reviews start too late, after the account structure and trust boundaries are set. Least privilege isn't fewer actions; it's smaller failure domains.


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The Discovery Layer Is Broken: Hiring as an Observability Problem

The senior engineering market has a routing failure, not a talent shortage: resumes and funnels index for keywords and discard the signal seniors depend on.


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Prompt Injection Will Become a Supply Chain Evasion Technique

Prompt injection's threat model is older than the term. The mechanism is new, the objective is the evasion goal attackers have pursued for decades.


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Bandit-Clean Pwnagotchi Plugins: How `subprocess` Goes From Risk to Routine

Hardening a Pwnagotchi plugin against Bandit B602/B603/B607: shutil.which() full paths, argv-list calls, input validation, and the nosec discipline.


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TLS Has Three Jobs. Forget the Rest.

TLS gets easier when you stop walking the handshake and name what it's for. It does three jobs; anchor those and it becomes design, not memorization.


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Adoption Is a Security Control: Notes from Paving a Road

A control developers route around isn't a control. Field notes on making the secure path the easy path: 40% less remediation time, 27% less pipeline latency.


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The Teensy That Failed in Public: An EFI Brute Force, Hours Late

In 2013 Hackaday called my MacBook EFI brute force a failure; hours later it worked. Three rate-limiting defenses, each leaking at a different seam.


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IAM Roles That Fail Loud: Small Defaults, Big Difference

A small Pulumi library that treats IAM safety as a precondition: mandatory permissions boundary, no wildcard trust, no wildcard actions, every opt-out explicit.


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The Trust Decay: Why Modern Hiring Has Become an Adversarial System

The tech hiring pipeline has shifted from talent discovery to risk mitigation. In 2026, the engineers who get hired are the ones who are hardest to doubt.


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Never Lose Connection: Multi-Phone Bluetooth Tethering for Pwnagotchi

bt-tether-multi is a Pwnagotchi plugin for intelligent multi-phone Bluetooth tethering with automatic WAN failover and silent-disconnect recovery in the field.


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