Google Account Suspicious Activity Question

I posted a thread on asking about powerwashing my chromebook because I want to wipe everything first before using it for financial things...then powerwashing it a 2nd time to go back to my normal doing things on the chromebook. I decided I'm going to powerwash my chromebook for this.



Now the most important thing here is for those 5 google accounts or any google accounts you have, make sure you put a recovery email just in case right? The reason is because when you log into those accounts later on, sometimes google might find your account suspicious activity? I ask this because last time when I signed into my google accounts into this chromebook.... previously used an old chromebook... some google accounts I enter my password and got access to my google account. However, there were a few accounts where it said it detected unusual activity and I think it asked me to provide a phone number? I didn't do that but I never put a phone number to that google account or any google account. I do know that for some google accounts, I do put a recovery email. So would it be good enough to just put one email and no phone number or is that risky? And make sure the recovery email is yahoo as oppose to gmail? Because my 5 accounts... several of them use 1 of these google accounts as the recovery email so if I can't log into that specific google account which is my recovery email for the other accounts, then I would get locked out of my google accounts if it detects my account suspicious?


So make sure you put a yahoo email address or non gmail recovery email for this... in the case that entering those google account and passwords... it wouldn't let you in because it detect suspicious activity?


Also at the moment, I do my sync everything on. Does that mean if say I have 50 chrome tabs at one of my chrome accounts... when I into chromebook after a powerwash... those same 50 chrome tabs will open when I open chrome or not?


Has anyone had this happen when they log into a google account in either a new computer or new ip address? The thing is I want to make sure with these 5 google accounts, after I enter my password for each, it would log in and give me access as oppose to saying enter a phone recovery number or something else. The thing is for those google accounts that I couldn't get in eventhough I entered the right password... I didn't bother to enter a phone number. I assume all I needed to enter at that time was any phone number to get access to my account because I entered the password correctly? But to get by all this, just make sure you put phone number now or non gmail email address as recovery so if it does detect suspicious activity, you just go to the non gmail account to confirm it is you?


Thanks.

Based on my personal experience, I have some advice to share:

1. It is not necessary to link your phone number to your account, but it is important to save your sign-up details, such as your birth date and security question in a safe place for future account recovery.

2. Always sign in without using a proxy or VPN (Google is highly sensitive to any changes in IP addresses).

3. If you sign in using an "InPrivate Tab/Window", a recovery confirmation message will be displayed 90% of the time.

4. Using a GMail account as a recovery account for another GMail account is safe and recommended.

Sing out of the device or change the password, that alone will force re-login on every device.