Software company OSIsoft has suffered a data breach

Pierluigi Paganini November 23, 2018

Software company OSIsoft has suffered a data breach, the firm confirmed that all domain accounts have likely been compromised.

Software company OSIsoft notified security breach to employees, interns, consultants, and contractors.

The company offers real-time data management solutions, its core product is the open enterprise infrastructure, the PI System, that allows connecting sensor-based data, systems, and people.

The PI System product is used by organizations to collect, analyze and visualize data to improve internal processes.

According to the data breach notification published by the company and submitted to the Office of the Attorney General in California, attackers used stolen credentials to remotely access company systems.

“OSIsoft is experiencing a security incident that may affect employees, interns, consultants and contractors. Stolen credentials were used to remotely access OSIsoft computers.” reads the data breach notification.

“OSIsoft intrusion detection systems alerted IT to unauthorized activity. Our security service provider has recovered direct evidence of credential theft activity involving 29 computers and 135 accounts. We have concluded, however, that all OSI domain accounts are affected.”


Hackers accessed OSI domain logon account name, email address, and password, although Active Directory (AD) uses cryptographic protection methods, users personal credentials may have been compromised.

The company is still investigating the security breach, in the meantime, it has developed a comprehensive remediation strategy.

The submission of the notification to the Office of the Attorney General revealed that at the time OSIsoft listed eight different dates between March 23, 2017, and July 26, 2018, more than a year! Below the data provided by the company.

  • Thursday, March 23, 2017
  • Saturday, May 6, 2017
  • Tuesday, May 9, 2017
  • Saturday, August 5, 2017
  • Wednesday, April 18, 2018
  • Wednesday, May 23, 2018
  • Wednesday, July 18, 2018
  • Thursday, July 26, 2018

The company is resetting compromised passwords, it also urges affected people to change passwords on external services if they were the used for the OSI account, report suspicious activity to the IT team, and disable or restrict remote access and file sharing features on their devices.

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Pierluigi Paganini

(Security Affairs – OSIsoft, data breach)

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