Just letting you know I am also experiencing regular freezes with MBAM Web Protection.
I have been running MBAM Premium for years with no problems until the freezes started on December 19, 2018.
The freezes occur several times a day and sometimes when the PC is just sitting idle.
After disabling MBAM for days at a time, I finally discovered that the freezes appear to only occur when MBAM is running and only when Web Protection is On.
I am running Windows 7 pro 64 bit and the event log never shows any kind of errors after each freeze.
Something changed on the December 19th updates.