Is Android marshmallow still secure?

Related questions

1. Is Android 7 still supported?
2. Can Android version be updated?
3. What is the most popular version of Android?
4. What is Android 9.0 called?
5. Will Samsung a8 get Android pie?
6. Is redmi Note 4 Android upgradable?
7. Is Android KitKat still safe?
8. Is Android nougat better than marshmallow?
9. Will the s7 get Android pie?
10. Will a7 2017 Get Android pie?

Tags

1. #updating
2. #version
3. #minimum
4. #supported
5. #longer
6. #android
7. #years
8. #security
9. #still
10. #discontinued
11. #compatible
12. #already
13. #patches
14. #expect
15. #google
16. #recently
17. #marshmallow
18. #developers
19. #after
20. #their