Lynch, acclaimed as a prominent UK tech entrepreneur and likened to "Britain’s Bill Gates," is facing 16 charges including wire fraud, securities fraud, and conspiracy related to the contentious acquisition. Denying all charges, Lynch could face up to 25 years in jail if convicted.

The trial, taking place in a San Francisco courtroom, hinges on the events of 2011, the year HP acquired Autonomy. Jurors will examine numerous witnesses’ testimonies to unravel the truth behind the acquisition.

Lynch, observed mostly engaging quietly in court, allegedly spun a tale of success in a critical 2011 meeting with HP, leading to accusations of constructing a multiyear fraud involving dubious accounting practices.

Prosecutors depict Lynch as a domineering CEO who manipulated figures to inflate Autonomy’s value, while his defense highlights his background and achievements, arguing that the real picture is complex and not merely black or white.

They assert that Lynch was less involved in the day-to-day accounting and refute the portrayal of HP as a victim, instead suggesting that HP desperately sought Autonomy to save itself from financial troubles.

Other key figures include Steve Chamberlain, Autonomy’s former finance executive, who has also pleaded not guilty to related fraud charges, and Sushovan Hussain, Autonomy’s CFO, convicted in 2018.

The trial also expects to bring in witnesses from Autonomy’s auditor, Deloitte, and HP’s senior executives at the time of the acquisition. The defense promises to contest any claims of deception towards Deloitte, emphasizing the complexity and contentious nature of the case.