# Local Privacy Firewall

5 Hacker News commenters recommended Local Privacy Firewall and 1 criticized it, November 2025 to November 2026. It was recommended in 1 of 13 months.

**Verdict:** Blocks PII and secrets before they reach ChatGPT; praised for its approach. Critics call it a stopgap that does not stop Claude dumping files.

## Why people recommend it

- Approach praised as great (2 comments): "I really like the approach you're taking!!" ([source](https://news.ycombinator.com/item?id=46241028)) "This is a great approach." ([source](https://news.ycombinator.com/item?id=46247676))
- Wanted between machine and git (1 comments): "can i have this between my machine and git please" ([source](https://news.ycombinator.com/item?id=46231384))

## What people warn about

- Stopgap for one specific scenario (1 comments): "to me it feels like a stopgap, something that fixes a specific scenario" ([source](https://news.ycombinator.com/item?id=46238665))
- Does not stop Claude dumping files (1 comments): "doesn't prevent claude from running a command that dumps the file on stdout" ([source](https://news.ycombinator.com/item?id=46244374))

## Alternatives hackers recommend

- [Little Snitch](https://hackerapproved.com/p/little-snitch.md): 75 recommend
- [OpenSnitch](https://hackerapproved.com/p/opensnitch.md): 27 recommend
- [NetGuard](https://hackerapproved.com/p/netguard.md): 22 recommend
- [Portmaster](https://hackerapproved.com/p/portmaster.md): 8 recommend

## Cite as

Hacker Approved, "Local Privacy Firewall", https://hackerapproved.com/p/local-privacy-firewall/ (counts from 1,795,640 Hacker News comments, November 2025 to November 2026).