microsoft/presidio

Detecting :: as IPv6 Address

troy256 opened this issue · 5 comments

troy256 commented

Describe the bug
We are indirectly using this library as part of PII detection for text coming from a GenAI based coding assistant. However it is detecting every instance of "::" as PII, because IPv6 addresses can contain this. This string is regularly used in Perl, as well as C++ and PHP. E.g. -

use strict;
use warnings;
use LWP::UserAgent; <-- detected as PII

Expected behavior
Ideally the IPv6 detection would be smart enough to know the difference between programming language use vs an actual IPv6 address.

Additional context
Very similar to Issue #907

SharonHart commented

:: is a valid ipv6 address
The solution might be to split the regex into two and drop the score for ::
Anyone up for fixing it?

  • 👍1
troy256 commented

Even though :: is a valid IPv6 address, it's not personally identifiable and is effectively anonymous. So maybe skip over it?

omri374 commented

A simple workaround would be to add :: as an allow_list term.

troy256 commented

Can that be done with configuration or is that a code change?