Yahoo says they have introduced few improvements in encrypting the users' data in an attempt to prevent cyber attacks and Government surveillance.
Alex Stamos, who recently joined Yahoo as Chief Information Security Officer, said that traffic moving from one Yahoo's data center to another is fully encrypted as of March 31.
The move came after whistleblower Edward Snowden leaked documents that alleged that traffic from Google and Yahoo data centers were being intercepted by NSA.
Yahoo has enabled encryption of mail between its servers and other mail providers. Search requests made from Yahoo homepage are also now automatically being encrypted.
Yahoo is promising to release a new, encrypted, version of Yahoo messenger within next few months.
"In addition to moving all of our properties to encryption by default, we will be implementing additional security measures such as HSTS, Perfect Forward Secrecy and Certificate Transparency over the coming months. This isn’t a project where we’ll ever check a box and be 'finished.' " Stamos wrote in the blog post.
"Our fight to protect our users and their data is an on-going and critical effort. We will continue to work hard to deploy the best possible technology to combat attacks and surveillance that violate our users’ privacy."he added.