As reported by Slashdot:
“Denied the right to travel without consent from their male guardians and banned from driving, women in Saudi Arabia are now monitored by an electronic system that tracks any cross-border movements. Since last week, Saudi women’s male guardians began receiving text messages on their phones informing them when women under their custody leave the country, even if they are travelling together. ‘The authorities are using technology to monitor women,’ said columnist Badriya al-Bishr, who criticised the ‘state of slavery under which women are held’ in the ultra-conservative kingdom. Women are not allowed to leave the kingdom without permission from their male guardian, who must give his consent by signing what is known as the ‘yellow sheet’ at the airport or border.”
You can read the full article here. I had hoped this was an Onion-style satirical piece, but it does appear to be real.