Adyen fell victim to three coordinated DDoS attacks on Monday evening, severely disrupting debit card and online payments.

The first surge of malicious traffic struck at around 7 pm, with follow?up waves at 8:35 pm and 11:35 pm, overloading Adyen's servers and hindering transactions.

Customers reported failures at checkouts in shops, restaurants and on e?commerce sites until Adyen announced at 3:40 am that all its services were back online.

The firm attributed the interruptions to 'limited availability' caused by the data floods and reassured merchants that normal operations had resumed.

Handling nearly E1.3 trillion in payments last year, Adyen serves high?profile clients such as Meta, Uber, eBay, HelloFresh and Spotify.

While the precise economic impact of the outages remains unclear, the episode highlights the vulnerability of global payment networks to cyber threats.

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