Security Experts:

Connect with us

Hi, what are you looking for?



Keystone Health Data Breach Impacts 235,000 Patients

Pennsylvania healthcare provider Keystone Health has started informing patients of a data breach potentially impacting their personal information.

Pennsylvania healthcare provider Keystone Health has started informing patients of a data breach potentially impacting their personal information.

In a data breach notification published on its website, Keystone is disclosing a cybersecurity incident identified on August 19 and which has resulted in the disruption of some systems.

The healthcare provider says it immediately launched an investigation into the incident, which discovered that certain patient information might have been compromised.

“Our investigation found that an unauthorized party accessed files within our system between July 28, 2022 and August 19, 2022. Some of those files contained patient information, including names, Social Security numbers, and clinical information,” the data breach notice reads.

Keystone says it has already started mailing letters to the affected patients, offering them credit monitoring services.

No other information regarding the incident has been provided and it is unclear whether Keystone Health fell victim to ransomware or to a different type of cyberattack.

On Friday, Keystone notified the US Department of Health and Human Services that over 235,000 individuals were impacted by the incident.

Related: Data Breach at PFC USA Impacts Patients of 650 Healthcare Providers

Related: Data Breach at Shields Health Care Group Impacts 2 Million Patients

Related: SuperCare Health Data Breach Impacts Over 300,000 People

Related: Over 500,000 Patients Hit by Data Breaches at Healthcare Firms in Alabama, Colorado

Written By

Ionut Arghire is an international correspondent for SecurityWeek.

Click to comment

Daily Briefing Newsletter

Subscribe to the SecurityWeek Email Briefing to stay informed on the latest threats, trends, and technology, along with insightful columns from industry experts.

Join this webinar to learn best practices that organizations can use to improve both their resilience to new threats and their response times to incidents.


Join this live webinar as we explore the potential security threats that can arise when third parties are granted access to a sensitive data or systems.


Expert Insights

Related Content


Zendesk is informing customers about a data breach that started with an SMS phishing campaign targeting the company’s employees.


Satellite TV giant Dish Network confirmed that a recent outage was the result of a cyberattack and admitted that data was stolen.


The release of OpenAI’s ChatGPT in late 2022 has demonstrated the potential of AI for both good and bad.


The changing nature of what we still generally call ransomware will continue through 2023, driven by three primary conditions.

Application Security

PayPal is alerting roughly 35,000 individuals that their accounts have been targeted in a credential stuffing campaign.


No one combatting cybercrime knows everything, but everyone in the battle has some intelligence to contribute to the larger knowledge base.


A recently disclosed vBulletin vulnerability, which had a zero-day status for roughly two days last week, was exploited in a hacker attack targeting the...


As it evolves, web3 will contain and increase all the security issues of web2 – and perhaps add a few more.