The power capacity of multi-tenant data centers is typically oversubscribed in order to
increase the utilization of expensive power infrastructure. This practice can create
dangerous situations and compromise data center availability if the designed power
capacity is exceeded. This paper demonstrates that current safeguards are vulnerable to
well-timed power attacks launched by malicious tenants (ie, attackers). Further, we
demonstrate that there is a physical side channel---a thermal side channel due to hot air …

The power capacity of multi-tenant data centers is typically oversubscribed in order to
increase the utilization of expensive power infrastructure. This practice can create
dangerous situations and compromise data center availability if the designed power
capacity is exceeded. This paper demonstrates that current safeguards are vulnerable to
well-timed power attacks launched by malicious tenants (ie, attackers). Further, we
demonstrate that there is a physical side channel—a thermal side channel due to hot air …