in reply to Perl Exposure to Zlib Vulnerability, Mitigation Strategy?

I just went through this with that PHP bug a while back, and now need to get with various ISP's to get them to upgrade. .. again... I'm wondering what is the consensis of those who deal with ISP's on a regular basis .. what is your expected hassle factor to get a security flaw like this fixed, and when is an ISP easier to leave than to deal with?

Glenn H.