Next time you need to send someone something like an account login or a password, OneShar.es lets you do this in a secure fashion. Paste your data into its form, and it lets you generate a self-destructing, view-once message with an expiring link.
Sending confidential information such as passwords, account information and other sensitive data in emails and IM is not necessarily safe. That data is typically stored with remnants of the bits in places you don’t need it to be.
Source: Share private information with others that self-destructs after first viewing. | OneShar.es
This article a great reminder as to why you should always keep your WordPress install updated with the latest version. If you’re running the latest version of WordPress (currently 4.0.1), the exploit discussed below does not apply to you: