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01 Nov 2025

Nearly 50 Mayo households' personal information caught in pyrite data breach

Cyber incident at engineering firm impacts personal information contained in files submitted by Mayo applicants to the defective concrete blocks grant scheme

Pyrite

362 applications received in Mayo under the pyrite redress scheme

Personal information belonging to almost 861 pyrite-affected homeowners may have been compromised in a data breach affecting the computer systems of a consulting engineering firm used by the Housing Agency to assess applications under the defective concrete blocks grant scheme.

47 scheme applicants from Mayo may have been impacted by the cyber breach, the Housing Agency has revealed. 

According to the Housing Agency, the data potentially affected includes applicants’ names, local authority reference numbers, contact details, and technical reports - including dwelling photographs.

However, it said that no financial or banking information was compromised.

Mayo applicants are affected by the data breach affecting the computer systems of a consulting engineering firm, Sligo-based Jennings O'Donovan, used by the Housing Agency to assess applications under the defective concrete blocks grant scheme.

The story was first broken by Donegal Live, and according to the Housing Agency, the data potentially affected includes applicants’ names, local authority reference numbers, contact details, and technical reports - including dwelling photographs.

However, it said that no financial or banking information was compromised.

A Jennings O’Donovan spokesperson said: “We recently experienced a network disruption involving temporary unauthorised access to a limited part of our IT system. In line with our established IT security protocols, we immediately responded to identify and isolate affected systems and investigate alongside external specialists. Our robust IT measures ensured we successfully mitigated the disruption. Any personal financial information was stored securely on systems that have been unaffected by the disruption. We remain in regular contact with our clients and the relevant authorities.”

The Housing Agency told Donegal Live that no material delays to applications are expected as a result of the breach.

Homeowners can take some consolation from that, although they may be forgiven for expecting the usual lengthy wait times for processing payments.

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