Xiaomi left it late with updating the Mi A2 to the January 2021 security patch, but we can have no such complaints this month. V11.0.21.0.QDIMIXM is rolling out now, just a few days after Google updated its Pixel smartphones to its latest security patch. The February 2021 security patch addresses 19 serious or critical CVEs for the Mi A2.
https://www.notebookcheck.net/The-Xiaomi-Mi-A2-is-already-receiving-the-February-2021-security-patch-fixing-19-serious-or-critical-CVEs.519284.0.html