Complex sentence: Whereas a white hat will generally work with a vendor to correct the flaw, within a time frame, or under certain conditions, grey hats may attempt to pressure vendors to release a patch for a flaw through the possibility of disclosure.
Split into simpler sentences: Whereas a white hat will generally work with a vendor to correct the flaw, within a time frame, or under certain conditions. They also may attempt to pressure vendors to release a patch for a flaw through the possibility of disclosure.