A Wisconsin woman who used social media to spread a “virtual library” of bomb-making instructions pleaded guilty to attempting to support ISIS on Monday, authorities said.

Waheba Issa Dais, 45, now faces up to 20 years in prison for doling out “step-by-step instructions” on making an explosive belt and TNT via Facebook when she is sentenced in September.

As part of her plea, Dais admitted to using hacked Facebook accounts to encourage supporters of ISIS, recruiting would-be terrorists to the group and spreading information about how to make bombs and biological weapons, according to federal prosecutors.

On one of her accounts in 2018, Dais urged an ISIS supporter to put ricin toxin in a government facility or a water supply. On another account, she suggested locations for a bombing attack, including street festivals and other summer events.

Dais, a legal permanent resident of the US who is originally from Israel, was arrested by the FBI on June 13, 2018, after an extensive investigation by the bureau’s Milwaukee field office, authorities said.

Attorney information for Dais was not immediately available.