He's a developer, journaling success and failure experiences from Costa Rica. Promoter of consumer digital security.https://blog.marcelloavila.com/https://blog.marcelloavila.com/blog/2022-09-21-what-is-rss-feed/https://blog.marcelloavila.com/blog/2022-09-21-what-is-rss-feed/I learn and explain what is and how to use RSS FeedsWed, 21 Sep 2022 00:00:00 GMThttps://blog.marcelloavila.com/blog/2022-09-23-blog-log/https://blog.marcelloavila.com/blog/2022-09-23-blog-log/Documenting my blogging journey. Platform and content strategy decisions.Fri, 23 Sep 2022 00:00:00 GMThttps://blog.marcelloavila.com/blog/2022-10-06-hotfix-1-affecting-100-users/https://blog.marcelloavila.com/blog/2022-10-06-hotfix-1-affecting-100-users/A story about a scripting mistake that accidentally disabled 100 users, and what I learned from it.Thu, 06 Oct 2022 00:00:00 GMThttps://blog.marcelloavila.com/blog/2022-11-07-how-a-website-stores-your-password/https://blog.marcelloavila.com/blog/2022-11-07-how-a-website-stores-your-password/Understanding password storage methods: hashing, salting, and why plain text is a security nightmare.Mon, 07 Nov 2022 00:00:00 GMThttps://blog.marcelloavila.com/blog/2022-11-11-what-is-an-onion-domain/https://blog.marcelloavila.com/blog/2022-11-11-what-is-an-onion-domain/Understanding .onion domains, Tor network, and how onion routing provides anonymity.Fri, 11 Nov 2022 00:00:00 GMThttps://blog.marcelloavila.com/blog/2022-12-02-5-ways-you-will-lose-your-password/https://blog.marcelloavila.com/blog/2022-12-02-5-ways-you-will-lose-your-password/Common ways passwords are compromised: weak passwords, reuse, sharing, predictability, and refusing to change.Fri, 02 Dec 2022 00:00:00 GMThttps://blog.marcelloavila.com/blog/2022-12-08-how-companies-track-you-by-email/https://blog.marcelloavila.com/blog/2022-12-08-how-companies-track-you-by-email/Learn how email tracking pixels work and how to protect yourself from marketing surveillance.Thu, 08 Dec 2022 00:00:00 GMThttps://blog.marcelloavila.com/blog/2023-02-08-ia-and-me-exploring-the-benefits-of-ai/https://blog.marcelloavila.com/blog/2023-02-08-ia-and-me-exploring-the-benefits-of-ai/How ChatGPT and AI tools can help with personal security, decision-making, and business.Wed, 08 Feb 2023 00:00:00 GMThttps://blog.marcelloavila.com/blog/2023-12-14-como-ando-en-bicicleta/https://blog.marcelloavila.com/blog/2023-12-14-como-ando-en-bicicleta/Las leyes y la realidad de andar en bicicleta en Costa Rica, y cómo la cultura vial afecta la seguridad.Thu, 14 Dec 2023 00:00:00 GMThttps://blog.marcelloavila.com/blog/2023-12-22-the-enabler-level/https://blog.marcelloavila.com/blog/2023-12-22-the-enabler-level/Beyond four stages of competence: the enabler level is when you can teach others effectively.Fri, 22 Dec 2023 00:00:00 GMThttps://blog.marcelloavila.com/blog/2025-04-02-rodar-es-facil-organizarse-tambien/https://blog.marcelloavila.com/blog/2025-04-02-rodar-es-facil-organizarse-tambien/Lecciones sobre organización ciudadana aprendidas de una marcha masiva de motociclistas.Wed, 02 Apr 2025 00:00:00 GMThttps://blog.marcelloavila.com/blog/2025-08-29-privilegio-lavar-mis-platos/https://blog.marcelloavila.com/blog/2025-08-29-privilegio-lavar-mis-platos/Una reflexión sobre la presencia mental mientras se hacen tareas cotidianas.Fri, 29 Aug 2025 00:00:00 GMThttps://blog.marcelloavila.com/blog/2026-04-21-el-boicot-es-consciencia/https://blog.marcelloavila.com/blog/2026-04-21-el-boicot-es-consciencia/Reflexión sobre el boicot como herramienta política y por qué la perfección no es el enemigo del bien.Tue, 21 Apr 2026 00:00:00 GMThttps://blog.marcelloavila.com/blog/2026-05-06-chernobyl-depth-demo/https://blog.marcelloavila.com/blog/2026-05-06-chernobyl-depth-demo/From 5 essential bullets to nuclear physics — explore the 1986 Chernobyl accident at the depth that works for you.Wed, 06 May 2026 00:00:00 GMT