Lex

CS + Data Science student. Building in public while earning my degree.

[Math Hub @mathhub_vn]

(a + b)² = a² + 2ab + b²

[Lex @devmatixx]

@RyanEls4 And it loops back once the bug is fixed.

[Lex @devmatixx]

@lreyzin Congrats to Duan Tu! 🎉 Huge milestone, and heading to Meta as a Research Scientist is an incredible next step.

[Lex @devmatixx]

@jahirsheikh8 I’d check for a bad query plan first. Something probably stopped using an index

[Lex @devmatixx]

@TheCyberPatron_ IEEE checks who you are and what device you’re on before letting you on the network. That’s the whole point. access isn’t automatic, it’s earned.

[Lex @devmatixx]

5 years ago AI mastered word prediction. Then it became a chatbot. Now it’s an agent that codes, browses, and gets things done on its own. We went from “guess the next word” to “go handle this for me.” Wild how fast that happened.

[Lex @devmatixx]

@StackOverflow This makes sense. Why should every agent solve the same problem from scratch? Sharing what works saves time and compute for everyone.

[Lex @devmatixx]

https://t.co/FMxiHI6GxQ now talks to a real database. supabase project provisioned, env vars wired, client library installed, and connection test is good. no features yet. but the wire is live. the slow middle continues.

[Lex @devmatixx]

It is important to provide role specific training in cybersecurity to align with specific job functions, LMSs, and addressing direct responsibilities, access levels, and potential vulnerabilities associated with different roles.

In other words.
a developer, an HR manager, and a CEO all face different risks. They should be trained for the threats they’ll likely encounter. not a generic checklist.

[Lex @devmatixx]

@CiscoNetAcad Thank you for the encouragement. Well needed.

[Lex @devmatixx]

160 followers ago I was talking to myself on here. I’m still posting the same way and still learning in public. The only thing that changed is a few more people decided to come along.

Thank you. 😊

[Lex @devmatixx]

@sickdotdev That’s all it takes

[Lex @devmatixx]

@github Really!? Wow.

[Lex @devmatixx]

The “NSA confirms Anthropic’s Mythos hacked all classified systems” headline is everywhere right now.

Here’s what actually happened: A senator relayed a private conversation. It was an authorized red-team test, not a real breach. The NSA never officially confirmed anything.

The real story isn’t a hack. It’s that frontier AI is now powerful enough to be a national security issue.

[Lex @devmatixx]

Today in Cybersecurity I learned the NIST Cybersecurity Framework and its 5 core functions:

Identify - know your assets and risks
Protect - put safeguards in place
Detect - spot incidents as they happen
Respond - contain and manage the threat
Recover - restore operations and learn from it

It’s a continuous lifecycle, not just a one-time setup. Each function feeds the next, as they building resilience over time.

[Lex @devmatixx]

@ProfFeynman This is the advice I wish someone gave me freshman year. The stuff you learn obsessively at 2am because you actually care always beats the stuff you cram for a grade.

[Lex @devmatixx]

@PhysInHistory A very solid representation Ohm laying the law.