There certainly has been some concerning issues with Roomba tech.
https://en.wikipedia.org/wiki/Roomba#Connectivity
https://en.wikipedia.org/wiki/Roomba#Hacking_and_extending_Roomba
https://www.theverge.com/2021/2/24/22299346/irobot-roomba-update-issues-vacuums-fix-several-weeks
https://www.techtarget.com/searchcio/news/252524792/Amazons-iRobot-acquisition-raises-concerns
https://mashable.com/article/amazon-irobot-acquisition-roomba-privacy
https://www.cbsnews.com/newyork/news/roomba-980-privacy-concerns