The scary incident went down on Tuesday and was all caught on tape, thanks to the paparazzi that has been stationed outside his Los Angeles mansion trying to get a picture of the actor with Jennifer Lopez.
A man wearing black, blue sneakers, a jacket displaying “security” in gold lettering, and a mask was caught jumping over the gate and onto Affleck's $20 million property in Pacific Palisades.
This might be the one-time the Justice League actor is appreciative of being hounded by shutterbugs.
Not only did they snap photos of the suspect breaking in but they also called the cops.
According to Page Six, police arrived to Ben's home on Napoli Drive around 8 AM but the suspect was already gone.
The paparazzi allegedly filmed the suspect fleeing away on a bicycle.
An LAPD spokesperson confirmed the news, revealing authorities took a trespass investigative report but no one was arrested.
Ben Affleck recently returned from Montana where he whisked J Lo away over the weekend.
The duo were photographed for the first time and their interaction looked tense.
The duo, dubbed as Bennifer, have been making headlines since Affleck was spotted leaving J Lo's home in L.A. earlier this month.
Both stars have been quiet on their rumored romance but J Lo's ex-fiancé Alex Rodriguez isn't too happy.
He's "shocked" and "upset" with J Lo's decision to go away with Affleck, especially after it was reported that Ben made his move on her while she was still engaged to the baseball star.
According to reports, Affleck began sending J Lo flirty emails back in February and she allegedly reciprocated.