Zero trust implementation – lessons from our 2-year journey

We completed our zero trust implementation after 2 years of work. It was harder than expected but the results are worth it. Here are our key lessons learned:

1. Start with identity – get MFA right first
2. Microsegmentation is the hardest part
3. You need executive buy-in from day one
4. Legacy applications will be your biggest challenge
5. It’s a journey, not a destination

This mirrors our experience exactly. The legacy application challenge was brutal – we had to build custom authentication proxies for apps that couldn’t support modern auth. How did you handle service accounts? That was our biggest headache.

Great write-up. What was your approximate total cost for the 2-year implementation? We’re trying to build a business case for our board.