This is the best summary I could come up with:

Last Thursday, HP CEO Enrique Lores addressed the company's controversial practice of bricking printers when users load them with third-party ink.

That frightening scenario could help explain why HP, which was hit this month with another lawsuit over its Dynamic Security system, insists on deploying it to printers.

HP has issued firmware updates that block printers with such ink cartridges from printing, leading to the above lawsuit (PDF), which is seeking class-action certification.

Still, because chips used in third-party ink cartridges are reprogrammable (their “code can be modified via a resetting tool right in the field,” according to Actionable Intelligence), they’re less secure, the company says.

Further, there's a sense from cybersecurity professionals that Ars spoke with that even if such a threat exists, it would take a high level of resources and skills, which are usually reserved for targeting high-profile victims.

Realistically, the vast majority of individual consumers and businesses shouldn't have serious concerns about ink cartridges being used to hack their machines.

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