HP has given a couple of examples of the type of financial irregularities it claims took place at Autonomy. These include the "mischaracterisation of revenue from low-end hardware sales" and the "improper inclusion" of this revenue in organic growth calculations.
Autonomy has also been accused of using its channel of value added resellers (VARs) to "inappropriately accelerate revenue recognition" and create evidence of sales where "no end user customer existed".
There's a fine line between presenting information in the best light and seeking to mislead.
Cannings described the reseller channel as an "easy place to stuff revenue", but reiterated his earlier claim that this should have been picked up on during the due diligence process.
"If you are using resellers, you ask them for evidence of the actual end users sale [when you run through the finances before an acquisition," he added.
Daniel Domberger, a director at financial advisory firm Livingstone Partners LLP, said HP's decision to go public about its suspicions of financial misbehaviour at Autonomy was bold.
"There's a fine line between presenting information in the best light and seeking to mislead...but the difficulty in proving it and the time it takes could be a useful smokescreen," he told IT Pro.
"In August, HP wrote off $8 billion of its $14 billion 2008 acquisition of EDS. Two huge writedowns in three months doesn't feel like a coincidence, but everyone's talking about the [one that involves an] alleged fraud instead."
There is a chance the companies that advised HP and Autonomy on the deal could face legal action for not picking up on the alleged financial issues, he claimed.
"Deloitte and KPMG [HP's auditors] could only work with the information they were given by Autonomy, but their role is to ask difficult questions and to identify whether it actually stacks up, and they apparently didn't identify any red flags," said Domberger.
"Autonomy's advisers may also be at risk, but [could] disclaim any liability because they were passing on information provided by their client, without really taking responsibility for it."
If it emerges that fraud did take place, this means HP's advisory teams will have been misled by Autonomy, and may not be liable, he added.
But, if no deception took place, they could find themselves in the firing line for not finding fault with the company's finances and - in turn - exposing their client to risk.
"Neither situation is great for their reputations, and I think a number of compliance officers will be digging through their files, trying to assess their exposure," he concluded.
