{"algorithm":"Ed25519","canonicalization":"JSON con chiavi ordinate (sort_keys), separatori compatti (',' ':'), ensure_ascii","payload":{"verdict_id":602,"claim_id":615,"claim_text":"In October 2025, MI5 issued urgent guidance to parliament warning that Russian hackers had stolen data from members of parliament, leaked sensitive UK-US trade documents ahead of the 2019 general election, and impersonated foreign embassies to contact ministers directly.","label":"vero","confidence":0.7,"explanation":"In mid-October 2025 MI5 issued security guidance to MPs and staff warning of espionage and cyber threats from Russia, China and Iran. UK authorities have separately attributed to Russian actors the theft/leak of UK-US trade documents ahead of the December 2019 general election and the impersonation of embassies to approach officials, matching the incidents cited.","sources":[{"url":"https://www.gov.uk/government/news/uk-exposes-attempted-russian-cyber-interference-in-politics-and-democratic-processes","ente":"GOV.UK / NCSC","titolo":"UK exposes attempted Russian cyber interference in politics and democratic processes","estratto":"UK exposes Russian intelligence cyber campaign targeting politics, including the 2019 leak of UK-US trade documents."},{"url":"https://www.euronews.com/2025/10/14/uks-mi5-warns-lawmakers-of-spying-threat-from-china-russia-and-iran","ente":"Euronews","titolo":"UK's MI5 warns lawmakers of spying threat from China, Russia and Iran","estratto":"MI5 issued guidance in October 2025 warning MPs of espionage threats from Russia, China and Iran."}],"issued_at":"2026-07-01T08:08:14+00:00"},"signature_b64":"fR1IIHoVSXOhex4p2c9JJ1lBPuXWb19ktqWJxVs9pV3coJ3Ph0ey03BxEKZqtFSf2Rpn7QzLMpHmYoucLvecDg==","public_key_hex":"1719e2638a2cc0ec8d552d71dca52197f934e0a66b17e6364f1eed7a1d428e01","note":"Verifica offline: ed25519_verify(public_key, base64decode(signature_b64), canonical_json(payload))."}