A woman's digital footprint risks becoming a dangerous weapon in the escalating U.S. abortion wars, with experts urging women in the crossfire to leave less of a trace if Roe v. Wade falls.

Be it location data, social media posts or search histories — online records will carry greater risk if women lose their constitutional right to an abortion, the researchers say.

"The apps you use, your internet search history and so on — information about you is being collected by third parties all the time," said Corynne McSherry, legal director at the Electronic Frontier Foundation, a digital rights group.