From Motorola's Droid Warranty, under exceptions:
ƒUnauthorized Service or Modification. Defects or damages resulting from service, testing, adjustment, installation, maintenance, alteration, or modification in any way by someone other than Motorola, or its authorized service centers, are excluded from coverage.
and, from asurion:
Computer virus or any other malicious code or
similar instruction that:
(1) Disrupts the normal operation of the Covered
(2) Results in destruction of or unsuitability of data
or programs stored in the Covered Property.
l. Intentional Loss or Damage
Damage to Covered Property which is the result
of it having been used in a manner inconsistent
for which it was designed or intended by the
manufacturer. We also do not cover damage that is
intentional or the result of abuse.