Ranking of Best & Worst Dogs for Security

According to professor Stanly Coren, author of
The Intelligence of Dogs

Top Dogs for Security Work

Listed from most to least effective according to territorial sense, aggressiveness, bulk, strength, courage and resistance to counterattack.

Top Dogs for Watchdog Barking

Listed from most to least alert. All these breeds are excitable and will bark vigorously at the presence of an intruder or in most situations that they think are out of the ordinary.

Dogs Least Likely to Succeed at Watchdog Barking

Listed from least to most alert. These breeds are the least likely to bark at the presence of an intruder. Will generally remain quiet and not disturb no matter what is going on in the vicinity.