
If you’re concerned about unauthorized access to your Gmail, you’ll be able to use this function to find out if and when someone gained access. The information can be use to troubleshoot unauthorized account activity.
1. Scroll down to the bottom of the Gmail. Find the “Last account activity” line.

2. Clicking the Details link next to the Last account activity line at the bottom of any Gmail page shows information about recent activity in your mail.

Recent activity includes any time that your mail was accessed, using a regular web browser, through a POP client, from a mobile device, etc. Gmail will list the IP address from which the access was made, the associated location, as well as the time and date.
How to track any attacks on your Gmail?
1. Does the Access Type column show any unusual access? If you don’t use POP to collect your mail, but your Recent activity table is showing some POP access, it may be a sign that your account has been compromised.
2. The IP address column is also useful. Gmail list the last 10 IP addresses and the associated location. If you received a warning about suspicious activity in your account, you may see up to 3 IP addresses that have been labeled as suspicious in addition to the 10 normal IP addresses. How do Gmail guess the location? In most cases, Gmail will match your IP address to a broad geographical location. If you always or most often sign in to Gmail using a single computer, your IP address should be the same, or start with the same two sets of numbers (for example, 172.16.xx.xx). If you’re seeing an IP address that differs greatly from your usual IP address, it could either mean that you’ve recently accessed your mail from a different location, or that someone else has accessed your mail. Your current IP address is displayed below the Recent activity table. In addition, you may notice that the location and IP mappings may not always be accurate, especially in cases where the logins are old.
3. In addition, some mobile providers and internet proxies may also appear in your recent login history, and in some cases, may appear to come from a different geographic location than you are normally based in.


