This message is in MIME format.  The first part should be readable text,
  while the remaining parts are likely unreadable without MIME-aware tools.

--1457021584-1586510095-1289886952=:31230
Content-Type: TEXT/PLAIN; CHARSET=UTF-8
Content-Transfer-Encoding: QUOTED-PRINTABLE
Content-ID:  

http://www.theregister.co.uk/2010/11/15/amd_secret_debugger/ 

By Dan Goodin in San Francisco
The Register
15th November 2010

A hardware hacker has discovered a secret debugging feature hidden in 
all AMD chips made in the past decade.

The password-protected debugger came as a shock to reverse-engineers who 
have hungered for an on-chip mechanism for performing conditional and 
direct-hardware breakpoint operations. Although AMD has built the 
firmware-controlled feature into all chips since the Athlon XP, the 
company kept it a closely guarded secret that was only disclosed late 
last week by a hacker who goes by the name Czernobyl.

=E2=80=9CAMD processors (Athlon XP and better) have included firmware-based 
debugging features that expand greatly over standard, architecturally 
defined capabilities of x86,=E2=80=9D the hacker wrote. =E2=80=9CFor some reason, 
though, AMD has been tightly secretive about these features; hint of 
their existence was gained by glancing at CBID's page.=E2=80=9D

To put a chip into developer mode, a user must first enter what amounts 
to a password -- 9C5A203A -- into the CPU's EDI register. Czernobyl was 
able to deduce the secret setting by brute forcing the key.

[...]


--1457021584-1586510095-1289886952=:31230
Content-Type: text/plain; charset="us-ascii"
MIME-Version: 1.0
Content-Transfer-Encoding: 7bit
Content-Disposition: inline

___________________________________________________________      
Tegatai Managed Colocation: Four Provider Blended
Tier-1 Bandwidth, Fortinet Universal Threat Management,
Natural Disaster Avoidance, Always-On Power Delivery 
Network, Cisco Switches, SAS 70 Type II Datacenter. 
Find peace of mind, Defend your Critical Infrastructure.
http://www.tegataiphoenix.com/ 
--1457021584-1586510095-1289886952=:31230--