The ransomware attack on Southern Water, attributed to the Russia-linked Black Basta group, has incurred costs exceeding £4.5 million for the utility, according to their annual report. In February 2024, Southern Water confirmed that a portion of its server data was stolen, leading to significant expenditures on cybersecurity and legal advice. The attack impacted around 10% of its 2.5 million customers across several regions. Leaked internal messages from the Black Basta group mentioned a $750,000 ransom, though Southern Water maintains it reported the incident to relevant authorities timely and that operations remained intact.
The ransomware attack on Southern Water by the Black Basta group has cost more than £4.5 million, impacting services and compromising the data of 10% of customers.
Southern Water’s annual report reveals that the February 2024 announcement confirmed a limited data breach due to a cyber intrusion, prompting a costly response.
The Black Basta gang's leaked messages reference a $750,000 ransom demand, raising questions about whether Southern Water complied with it.
Despite the intrusion, Southern Water ensured that their operations and services to customers remained unaffected during the response process.
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