The Hacker Who Took Down a Country

The attack against Liberia began in October 2016. More than a half-million security cameras around the world tried to connect to a handful of servers used by Lonestar Cell MTN, a local mobile phone operator, and Lonestar’s network was overwhelmed. Internet access for its 1.5 million customers slowed to a crawl, then stopped.

The technical term for this sort of assault is distributed denial of service, or DDoS. Crude but effective, a DDoS attack uses an army of commandeered machines, called a botnet, to simultaneously connect to a single point online. This botnet, though, was the biggest ever witnessed anywhere, let alone in Liberia, one of the poorest countries in Africa. The result was similar to what would happen if 500,000 extra cars joined the New Jersey Turnpike one morning at rush hour. While most DDoS attacks last only moments, the assault on Lonestar dragged on for days. And since Liberia has had virtually no landlines since the brutal civil war that ended in 2003, that meant half the country was cut off from bank transactions, farmers couldn’t check crop prices, and students couldn’t Google anything. In the capital of Monrovia, the largest hospital went offline for about a week. Infectious disease specialists dealing with the aftermath of a deadly Ebola outbreak lost contact with international health agencies.