(Bloomberg) -- Cybersecurity software pioneer John McAfee can be extradited to the U.S. on tax evasion charges, the Spanish High Court ruled.

McAfee was arrested and his been in jail in Spain since Oct. 6 when he was accused of tax evasion and failure to disclose income charges at Barcelona airport. He faces charges that he hid significant assets on his tax returns for a number of years, which included real estate and a yacht.

Read More: John McAfee Charged Over Crypto Promotion on Top of Tax Woes

The 75-year-old’s defense had argued that the extradition request was politically motivated and therefore wasn’t appropriate. He disagrees with the current monetary system, which has made him “public enemy No. 1,” according to court documents released on Wednesday. The U.S. calculates that McAfee owes more than $4.2 million in taxes for the 2014 to 2018, the documents show.

The ruling is the latest setback for McAfee’s burgeoning legal troubles. In March, the U.S. Securities and Exchange Commission also accused him of hiding cryptocurrency income of more than $23 million. Manhattan U.S. Attorney Audrey Strauss has said McAfee “exploited a widely used social media platform and enthusiasm among investors in the emerging cryptocurrency market to make millions through lies and deception.”

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