Google works hard to keep your email private information safe by doing the following:

 

Phishing Protection:

Many malware and phishing attacks start with an email. Gmail blocks more than 99.9% of spam, phishing attempts, and malware from reaching you.

 

Safe Browsing

Safe Browsing protects you by identifying dangerous links in email messages and warns you before you visit the site.

 

Proactive alerts

Gmail warns you before you download an attachment that could put your security at risk.

 

Account safety

We protect your account against suspicious logins and unauthorized activity by monitoring multiple security signals. We also offer the Advanced Protection Program for accounts most at risk of targeted attacks.

 

Email encryption

In Google infrastructure, messages are encrypted at rest and while in transit between data centers. Messages transiting to third-party providers are encrypted with Transport Layer Security when possible or required by configuration.

UC Berkeley Berkeley Box and Gmail use Agreement (what is allowed in email or not)