The Information Commissioner's Office (ICO) has fined the Central London Community Healthcare (CLCH) NHS Trust £90,000 following a serious data breach.
The ICO said that the breach first occurred in March 2011, when the Trust's Pembridge Palliative Care Unit faxed data on a number of its patients to the wrong recipient.
An ICO spokesman added that the Trust was made aware of the breach in June, when the unintended recipient of the files contacted the organisation.
"The Trust sent a series of faxes out containing personal, sensitive information on 59 individuals," the spokesman told V3.
"The Trust failed to address the breach, only accepting it had mishandled patients data when a member of the public contacted them."
The unnamed recipient reportedly received around 45 faxes, over a three month period. When contacting the Trust the individual reported they had shredded the documents after realising their sensitive nature.
The ICO confirmed the leaked data included medical diagnoses and information relating to patients' domestic situations and resuscitation instructions.
The Trust is the second NHS organisation to be hit by a fine from the ICO in recent weeks. A Welsh Health Board was hit with a £70,000 fine, after a doctor's email blunder resulted in a patient's detailed psychiatric report being sent to another patient with a similar surname.
The ICO issued a similar £70,000 fine on the London Borough of Barnet, after it lost records containing confidential information on a number of vulnerable children.
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