I've spoken to several Russia experts over the past year who were very clear the arson attacks on properties associated with Keir Starmer were Russian-based.
They talked about “Dark TaskRabbit” - online spaces on the dark web where the Kremlin comissions these sorts of "mischief-making" attacks
This is a huge story.
www.ft.com/content/dd79...
Rachel Cunliffe
www.ft.com
Handler was affiliated with a pro-Kremlin hacktivist group