(I've got a PM account and never received a notice, btw....they should inform 
all users.  --rick)

ParkMobile Breach Exposes License Plate Data, Mobile Numbers of 21M Users

April 12, 2021

https://krebsonsecurity.com/2021/04/parkmobile-breach-exposes-license-plate-data-mobile-numbers-of-21m-users/

Someone is selling account information for 21 million customers of ParkMobile, 
a mobile parking app that’s popular in North America. The stolen data includes 
customer email addresses, dates of birth, phone numbers, license plate numbers, 
hashed passwords and mailing addresses.

KrebsOnSecurity first heard about the breach from Gemini Advisory, a New York 
City based threat intelligence firm that keeps a close eye on the cybercrime 
forums. Gemini shared a new sales thread on a Russian-language crime forum that 
included my ParkMobile account information in the accompanying screenshot of 
the stolen data.

Included in the data were my email address and phone number, as well as license 
plate numbers for four different vehicles we have used over the past decade.

Asked about the sales thread, Atlanta-based ParkMobile said the company 
published a notification on Mar. 26 about “a cybersecurity incident linked to a 
vulnerability in a third-party software that we use.”

“In response, we immediately launched an investigation with the assistance of a 
leading cybersecurity firm to address the incident,” the notice reads. “Out of 
an abundance of caution, we have also notified the appropriate law enforcement 
authorities. The investigation is ongoing, and we are limited in the details we 
can provide at this time.”

The statement continues: “Our investigation indicates that no sensitive data or 
Payment Card Information, which we encrypt, was affected. Meanwhile, we have 
taken additional precautionary steps since learning of the incident, including 
eliminating the third-party vulnerability, maintaining our security, and 
continuing to monitor our systems.”

Asked for clarification on what the attackers did access, ParkMobile confirmed 
it included basic account information – license plate numbers, and if provided, 
email addresses and/or phone numbers, and vehicle nickname.

“In a small percentage of cases, there may be mailing addresses,” spokesman 
Jeff Perkins said.

ParkMobile doesn’t store user passwords, but rather it stores the output of a 
fairly robust one-way password hashing algorithm called bcrypt, which is far 
more resource-intensive and expensive to crack than common alternatives like 
MD5. The database stolen from ParkMobile and put up for sale includes each 
user’s bcrypt hash.

“You are correct that bcrypt hashed and salted passwords were obtained,” 
Perkins said when asked about the screenshot in the database sales thread.

“Note, we do not keep the salt values in our system,” he said. “Additionally, 
the compromised data does not include parking history, location history, or any 
other sensitive information. We do not collect social security numbers or 
driver’s license numbers from our users.”

ParkMobile says it is finalizing an update to its support site confirming the 
conclusion of its investigation. But I wonder how many of its users were even 
aware of this security incident. The Mar. 26 security notice does not appear to 
be linked to other portions of the ParkMobile site, and it is absent from the 
company’s list of recent press releases.

It’s also curious that ParkMobile hasn’t asked or forced its users to change 
their passwords as a precautionary measure. I used the ParkMobile app to reset 
my password, but there was no messaging in the app that suggested this was a 
timely thing to do.

So if you’re a ParkMobile user, changing your account password might be a pro 
move. If it’s any consolation, whoever is selling this data is doing so for an 
insanely high starting price ($125,000) that is unlikely to be paid by any 
cybercriminal to a new user with no reputation on the forum.

More importantly, if you used your ParkMobile password at any other site tied 
to the same email address, it’s time to change those credentials as well (and 
stop re-using passwords).

The breach comes at a tricky time for ParkMobile. On March 9, the European 
parking group EasyPark announced its plans to acquire the company, which 
operates in more than 450 cities in North America.
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