someone already hacked you and sent that message -- be afraid
On 6/20/07, Marc Balmer <[EMAIL PROTECTED]> wrote:
>
> * Bob Beck wrote:
>
> > > > And guess what. Keyboards use a serial protocol. Which means that
> > > > there will be slightly different voltage drops in the system varying
> > > > with the keys you press. ZOMG! OpenBSD provides a side channel for
> > > > attackers through the sensors framework!
> > >
> > > And don't forget the aps(4) sensor on Thinkpads! The accelerometer can
> > > probably measure the acceleration caused by various key strokes and
> that
> > > acceleration will be different depending on where on the keyboard you
> hit
> > > (different angles) and with which finger (different strength).
> >
> > well, and dont' forget the physical attack angle. Between the
> screen
> > leakage perhaps being used to detect a large number of pink pixels and
> > the aps(4) sensor leakage could probably detect the rythmic thumping
> > when the laptop owner is doing some one handed laptop driving when the
> > other hand is occupied. An attacker could use this information to then
> > physically take control of the machine while the operator has both
> > hands busy and is vulnerable!
>
> I just unplugged all my keyboards.
