Mahsa Rajati is a civil society and media activist who, along with a number of other activists and journalists, was arrested in 2016 and 2017 on charges of collaborating with the AmadNews network. AmadNews is a news site and Telegram channel run by Ruhollah Zam. The network gained a wide following through its publication of anti-government news, its disclosure of legal violations and corruption by government officials and its coverage of the 2017-2018 Iranian protests. Zam is currently imprisoned in Iran and has been sentenced to death by Iranian courts.

Mahsa Rajati was arrested at Imam Khomeini Airport in Tehran on January 2, 2017, before attempting to travel to Canada, according to the AmadNews Telegram channel.

Rajati spent two months in solitary confinement in Section 209 of Evin Prison, which is affiliated with the Irainian Ministry of Intelligence, and was then transferred to the women's section of the prison on March 12, 2017.

Rajati was accused of “propaganda against the state” through her work with AmadNews.

A number of other journalists were also charged as part of the case, including Mona Moafi, Zeinab Karimian, Masoumeh (Pegah) Zia, Tahereh Riahi and Mehrak Karimpour Andalibi. Several informed sources said at the time that there were other unnamed defendants that were also being charged as part of the case.

In mid-March 2017, a bail of 200 million tomans was issued for Rajati's temporary release. But her release was prevented as the prosecutor in her case failed to attend the bail hearings.

On March 25, 2017, Mahsa Rajati was once again transferred from the women's section of Evin Prison to solitary confinement in Section 241 of Evin Prison. Tahereh Riahi, Masoumeh Zia, and Mehrak Karimpour, three other defendants from the same case, were also transferred to solitary confinement in Section 241 of Evin Prison along with Rajati.

Mahsa Rajati was eventually released from prison on bail in June 2017. Her bail was secured by using the deed to her father’s house as collateral.

Several years after the case was initially prosecuted, the deed to Mahsa Rajati's father’s home is still being kept as collateral by the Iranian judiciary and she has still not been sentenced to any criminal charges.