Authorities in Ukraine and Russia have reported cyberattacks on their emergency alert apps. In Ukraine, residents received false messages about high nuclear radiation danger in Kyiv. Late Sunday, Ukraine’s air raid alert channel said unauthorized parties interfered with the app, which was temporarily suspended. The app was restored overnight. False alerts also included claims of a chemical threat and public disturbances in Kyiv. Russian officials said hackers sent fake alerts through Russia’s Emergency Ministry app, but the wider alert system remains functional.

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FILE - Russian President Vladimir Putin, right, examines the current prototype of an unmanned vehicle during his visits Russia's largest internet search engine Yandex headquarters in Moscow, Russia, on Sept. 21, 2017. (Alexei Druzhinin, Sputnik, Kremlin Pool Photo via AP, File)

Margaret Hamilton, a groundbreaking computer scientist who led the team that created the onboard flight software for NASA’s moon-bound Apollo program, has died. She was 90. Lauren Hamilton told The Associated Press on Thursday that her mother died Sept. 30 in Cambridge. NASA Administrator Jared Isaacman says on the social platform X that her work helped make humanity’s first journeys to the moon possible. Later in life she was celebrated as a powerful symbol of women in technology. In recent years a photo circulated online showing a smiling Hamilton next to a towering stack of pages containing codes her team used during the Apollo project.

The FIA has defended its handling of the Formula 1 car software bug which delayed the start of the Bahrain Grand Prix in Malaysia last week and pledged it will “strengthen” how the code is tested in future. Several drivers including seven-time champion Lewis Hamilton were left stuck on track when their cars lost power and had to be restarted on formation laps before Sunday’s race. The FIA rushed out a software update for the cars and now says it will be used again at this week's Singapore Grand Prix if it rains.