Hackers have breached the cyber defenses of a Swedish information technology firm; so far it is unclear whether the breach has resulted in the attackers gaining access to a database containing patient data, including COVID-19 test results.

In a statement InfoSolutions said, it has “identified and solved what made the intrusion possible.”

However, as yet, it cannot rule out whether personal data has been read.

InfoSolutions considers the “risk to be very low”.

The Swedish IT firm said, no information had been lost or altered.

InfoSolutions provides digital journals, including test results, to 15 of Sweden’s 21 regions on behalf of the country’s Public Health Agency; in recent months it was forced to close access to the database.

It continues to report all suspected breaches to law enforcement.