Detecting :: as IPv6 Address

[troy256]

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]

:: 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?

[troy256]

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

[omri374]

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

[troy256]

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

[omri374]

Configuration: https://microsoft.github.io/presidio/tutorial/13_allow_list/