I've read numerous threads on here about the perils of cutting hardware cloth. It's really quite simple. Make sure it's secure, whether it's stapled in it's final resting place or clamped on the workbench. Get out your angle grinder equipped with cut-off wheel (if you don't have one, borrow a friend's or get a cheap one from Harbor Freight for 15-20 bucks) and cut away.
I use an angle grinder all the time...