mIRC was never strictly "freeware." It was distributed as shareware with a 30-day evaluation period. How mIRC Handled Evaluation
mIRC version 6.35 is an incredibly old release, dating back to 2008. Legacy software versions contain unpatched security vulnerabilities that modern operating systems cannot fully protect against. Combining an outdated architecture with an untrusted, modified executable creates an open back door for remote hackers to monitor your IRC traffic or access your local file system. 3. Compromised Privacy on IRC Networks mirc 635 registration code patched