Version RQR12.10_B0032:
This release addresses an encrypted keystroke injection vulnerability sent by pointing devices. The vulnerability is complex to replicate and would require a hacker to be physically close to a target.

A few of Logitech's devices used to send select buttons in an unencrypted way, and in an effort to protect against this vulnerability, Logitech removed the feature. Affected hardware is:
 • Wireless Mouse M335
 • Zone Touch Mouse T400
 • Wireless Mouse M545
 • Wireless Mouse M560
 • Touch Mouse M600
 • Touch Mouse T620
 • Wireless Rechargeable Touchpad T650

Although Logitech does not recommend it, these features may be re-activated by keeping/downgrading the receiver to an older firmware.

Version RQR12.08_B0030:
This release addresses an encrypted keystroke injection issue known as Bastille security issue #13. The vulnerability is complex to replicate and would require a hacker to be physically close to a target.

A few of Logitech's devices used to send select buttons in an unencrypted way, and in an effort to protect against this vulnerability, Logitech removed the feature. Affected hardware is:
 • Wireless Mouse M335
 • Zone Touch Mouse T400
 • Wireless Mouse M545
 • Wireless Mouse M560
 • Touch Mouse M600
 • Touch Mouse T620
 • Wireless Rechargeable Touchpad T650

Although Logitech does not recommend it, these features may be re-activated by keeping/downgrading the receiver to an older firmware.