Your typing style is always on sale, and though it may seem harmless, it is actually dangerous
Sources
https://softwarelab.org/what-is-a-keylogger/
https://www.kaspersky.com/resource-center/definitions/keylogger
https://en.wikipedia.org/wiki/Keystroke_logging
https://www.youtube.com/watch?v=vCRX0MZm2KI&list=TLPQMjUwNDIwMjLkDdLdJsvDKg&index=1
https://www.androidauthority.com/swiftkey-suspends-service-data-leak-706680/
https://www.reddit.com/r/Android/comments/4u5b7d/holy_fk_swiftkey_is_giving_me_someone_elses/
https://imgur.com/a/TVmes
https://mackeeper.com/blog/data-breach-reports-2017/
https://www.zdnet.com/article/popular-virtual-keyboard-leaks-31-million-user-data/
https://www.howtogeek.com/335428/smartphone-keyboards-are-a-privacy-nightmare/