Heartbleed bug Android 4.1.1 Xperia E?

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Google has released a report that android 4.1.1is vulnerable to Heartbleed bug.
http://googleonlinesecurity.blogspot.in/2014/04/google-services-updated-to-address.html?m=1
Xperia E's latest firmware 11.3.A.2.23 runs on Android 4.1.1. Google has released a patch fix. But when is Sony going to release the patch for Xperia E's firmware?

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If you must use your phone for banking etc.,then follow these steps to minimize the chances of mishap:
1. Use a secure and trusted browser like Chrome or Firefox for sensitive activities.
2.Keep your browsers always updated.
3. Before you do sensitive activities, clear all cache and cookies in the browser.
4. Do not open multiple tabs, do not browse other websites while doing sensitive activities. Keep just one tab open.
5. After completing your activity, clear cookies and cache again.