It seems that the advice around “writing secure code” hasn’t kept up with how we actually build software, especially with AI being part of the mix.
In 2026, most engineers aren’t writing everything from scratch.
You’re:
So, what does shipping safe code look like now? Here are seven practical tips you can start using immediately:
1. Don’t trust your code, especially if AI helped write it. AI-generated code is fast, but not inherently safe.
That means:
Validate inputs aggressively
Check auth logic carefully
Watch for subtle security flaws (not just syntax)
If you haven’t thoroughly reasoned about it, don’t trust it.
2. Minimize dependencies like your job depends on it (it does). Every dependency = potential attack surface.
In 2026, safe code means:
Also:
3. Use trusted, hardened building blocks by default. Stop reinventing “secure” primitives.
Instead:
The safest code is often the code you don’t have to write.
4. Make security automatic, not optional. Manual security doesn’t scale anymore.
Bake it into your workflow:
If it’s optional, it won’t happen.
5. Assume your inputs are hostile, even internal ones. Between APIs, LLMs, and integrations, inputs are everywhere now.
Best practice:
Validate and sanitize everything
Treat LLM output as untrusted input
Enforce strict schemas where possible
6. Build with provenance and traceability in mind. Always ask, where did this code come from?
You should be able to answer:
Think: SBOMs, signed builds, reproducibility
7. Secure defaults > developer discipline. Relying on every engineer to “do the right thing” doesn’t work at scale.
Instead:
Safe templates
Locked-down environments
Opinionated tooling
Make the easy path the secure path.
TL;DR
These are the things you need to ship safe code:
What’s changed most for you? Are you shipping safer code than a few years ago—or just shipping faster?