Neither the White House is safe from hackers

It seems that the White House has become the new target of cyber-attacks.
The string of news Fox announced that a group of hackers tried to infiltrate the system computers of the White House, including teams that had information on nuclear operations. Apparently the attack was quickly isolated to prevent its spread. The White House has confirmed that the attack was led by a group of Chinese hackers.
The attack began with the arrival of a mail that apparently contained a malicious link or attachment had a malicious file that an agent made the mistake of opening. Apparently the attackers failed to meet their objectives.