The US-Israeli citizen accused of making bomb threats against Jewish centers across the globe used high-tech measures to elude authorities but slipped up when he forgot to hide his internet connection, according to a report.

The suspect – identified by The Daily Beast as Michael Kaydar, 19 – was busted Thursday at his home Israel after allegedly phoning in more than 100 threats to JCCs across the US, Europe, Australia and New Zealand.

The FBI traced his calls back to a service called SpoofCard, which allows users to mask their caller ID, the site reported.

The feds tried to obtain his real number by sending a subpoena to TelTech, the New Jersey-based company that runs the service.

But the number they unearthed turned out to have been set up under an alias via the call-forwarding service Google Voice, The Daily Beast reported.

The caller remained under the radar by routing his internet connections through proxy servers abroad and using SpoofCard’s voice-changing feature to sound like a woman, according to the report.

He also paid for his Spoofcard with Bitcoin digital currency, which stymied efforts to trace his financial tracks.

Meanwhile, the wave of threats continued and a disgraced Missouri reporter was arrested for allegedly targeting New York-based JCCs with copycat bomb threats after his Brooklyn gal pal broke up with him.

But Kaydar slipped at least once when he forgot to route his Internet connection through an anonymous server, leaving behind a real IP address in the logs of an Israeli server, the site reported.

Police traced the address to a WiFi access point that Kaydar was allegedly accessing through a giant antenna pointed out a window in his Ashkelon home in southern Israel.

A motive for his alleged crime has not been determined, but his lawyer, Galit Bash, said he has been suffering from a brain tumor since he was 14 years old and that it has affected his behavior.

TelTech told The Daily Beast that it is cooperating in probe.

“SpoofCard is aware of the investigation regarding phone-based bomb threats to schools and organizations,” the company said in a statement. “We take great pride in the fact that for over 10 years we have helped people protect their privacy and that we have always held a consistent position against any misuse of our services. When requested, we comply quickly and responsibly with lawful requests from all levels of law enforcement, and we have built specific tools to prevent abuse.”

Google did not immediately respond to a message about Google Voice’s role in case.