Back to overview
Confidence HighDec 21, 2024phreesia.com

ConnectOnCall (Phreesia Subsidiary) Data Breach Exposes Nearly 1 Million Americans' Health Records

PatternExternal actor · Hacking · Confidentiality impact

ConnectOnCall, a doctor-patient communications platform owned by health tech firm Phreesia, experienced a security breach that exposed sensitive personal and health records of nearly a million Americans (914,138 users). The incident, which occurred between February 16, 2024, and May 12, 2024, exposed full names, phone numbers, dates of birth, health conditions, treatments, medications, and Social Security numbers. The firm sent letters to affected users earlier in December 2024, and the breach was reported on December 21, 2024.

Signal date
Dec 21, 2024
Updated
Jul 1, 2026
Confidence
High
Sources
2 sources
phreesia.com logo

Phreesia

Sector
Information
Signals
1 linked

Signal context

First seen: Dec 21, 2024

Last updated: Jul 1, 2026

Status: Public signal

Key points

  • 914,138 users affected.
  • Exposed data includes names, phone numbers, dates of birth, health conditions, treatments, medications, and Social Security numbers.
  • Incident occurred between February 16, 2024, and May 12, 2024.

Signal analysis

Beta

This analysis groups the signal by industry, likely incident action and impacted security area. It helps compare this signal with other published signals without treating the labels as final determinations.

Affected organization
Phreesia logo
Phreesia

Sector: Information

Likely country: Location not provided

Estimated
Threat source
Hacking activity

Watch internet-facing systems, credential abuse and exploit activity.

  • Source type: outside the affected organization
Business impact
Potential data exposure

Impact area: Confidentiality

Likely asset: User or customer data

Trend context
66 signals with similar action pattern
  • 23 signals in the same sector
  • 88 signals with the same likely impact area
  • 1 signal linked to this organization/domain
Mentioned entities
PhreesiaData DisclosureConnectOnCallPhreesia SubsidiaryMillion AmericansPhreesiaAmericansExposed

External sources

Related signals

Grouped by why the signal is relevant.

aivd.nl logoAivdJul 1, 2026
Same sectorSame action patternSame impact area

CTIVD: AIVD en MIVD verwerken persoonsgegevens in bulkdata onrechtmatig

The Dutch intelligence services, AIVD and MIVD, have unlawfully processed personal data in bulk datasets, according to a ruling by the Committee for the Supervision of the Intelligence and Security Services (CTIVD). The report, published on July 1, 2026, states that groups of employees had unauthorized access to personal data, and large quantities of data were stored for too long. The bulk datasets, sometimes containing millions of records, include names, phone numbers, location data, social media data, and communication content, sourced from government agencies, commercially available datasets, or stolen datasets offered by criminals. The CTIVD has issued thirteen recommendations to improve the situation.

ctc.co.jp logoCtcJun 28, 2026
Same sectorSame action patternSame impact area

Chubu Telecommunications C., Inc. Affected by KDDI Corporation Data Breach

Chubu Telecommunications C., Inc., a Japanese internet service provider, was impacted by a data breach originating from an email system provided by KDDI Corporation. Threat actors gained unauthorized access to this shared system by exploiting a vulnerability in third-party software. This led to the potential exposure of up to 14.2 million email addresses and passwords across all affected ISPs. Chubu Telecommunications customers' email addresses and passwords may have been compromised.

biglobe.ne.jp logoBiglobeJun 28, 2026
Same sectorSame action patternSame impact area

BIGLOBE Inc. Affected by KDDI Corporation Data Breach

BIGLOBE Inc., a Japanese internet service provider, was impacted by a data breach originating from an email system provided by KDDI Corporation. Threat actors gained unauthorized access to this shared system by exploiting a vulnerability in third-party software. This led to the potential exposure of up to 14.2 million email addresses and passwords across all affected ISPs. BIGLOBE Inc. customers' email addresses and passwords may have been compromised.

stnet.co.jp logoStnetJun 28, 2026
Same sectorSame action patternSame impact area

STNet, Inc. Affected by KDDI Corporation Data Breach

STNet, Inc., a Japanese internet service provider, was impacted by a data breach originating from an email system provided by KDDI Corporation. Threat actors gained unauthorized access to this shared system by exploiting a vulnerability in third-party software. This led to the potential exposure of up to 14.2 million email addresses and passwords across all affected ISPs. STNet customers' email addresses and passwords may have been compromised.

jcom.co.jp logoJcomJun 28, 2026
Same sectorSame action patternSame impact area

JCOM Co., Ltd. Affected by KDDI Corporation Data Breach

JCOM Co., Ltd., a Japanese internet service provider, was impacted by a data breach originating from an email system provided by KDDI Corporation. Threat actors gained unauthorized access to this shared system by exploiting a vulnerability in third-party software. This led to the potential exposure of up to 14.2 million email addresses and passwords across all affected ISPs. JCOM customers' email addresses and passwords may have been compromised.

nifty.com logoNiftyJun 28, 2026
Same sectorSame action patternSame impact area

NIFTY Corporation Affected by KDDI Corporation Data Breach

NIFTY Corporation, a Japanese internet service provider, was impacted by a data breach originating from an email system provided by KDDI Corporation. Threat actors gained unauthorized access to this shared system by exploiting a vulnerability in third-party software. This led to the potential exposure of up to 14.2 million email addresses and passwords across all affected ISPs. NIFTY Corporation customers' email addresses and passwords may have been compromised.