San Francisco DA discloses city's network passwords

In its bid to protect the city from one computer security risk, the San Francisco District Attorney's Office may very well have created another.

The office of San Francisco District Attorney Kamala Harris has made public close to 150 usernames and passwords used by various departments to connect to the city's virtual private network. The passwords were filed this week as Exhibit A in a court document arguing against a reduction in US$5 million bail in the case of Terry Childs, who is accused of holding the city's network hostage by refusing to give up administrative networking passwords. Childs was arrested July 12 on charges of computer tampering and is being held in the county jail.

[ Related reading: San Francisco's mayor gets back keys to the network ]

Though they placed the passwords in the public record, city prosecutors do seem to think that they are sensitive.

The passwords, discovered on Childs' computer, pose an "imminent threat" to the city's computer network, according to the court filing. Childs could use the names and passwords to "impersonate any of the legitimate users in the City by using their password to gain access to the system," the motion against the bail reduction states.

Although the DA's office did not say what the passwords were used for, a source familiar with the situation said that they are for logging into the city's virtual private network, and that this type of information is something that a network administrator like Childs would be expected to have.

[ Related reading: IT admin locks up San Francisco's network ]

Posting these passwords in public creates a security risk, although the passwords are not enough to give a criminal access to the city's VPN. The passwords are so-called "phase one" passwords, and must be combined with a second password to access the network, the source said.

The passwords are used by city workers accessing the network from home computers or via laptops while they are outside of city offices. The passwords are for many city departments including the police department, the mayor's office, and the Department of Telecommunications and Information Services (DTIS), where Childs worked.

[ Related reading: Parts of San Francisco network still locked out ]

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