We compared Kraken's simple app against Kraken Pro's tiered fee schedule, traced the exchange's security record back to 2011, and checked the recent insider-related incidents that were not fund breaches. Here is why the interface you pick changes what you pay.
Kraken's homepage leads with "Since 2011" and a Forbes badge naming it the most popular crypto exchange of 2026. Fifteen years is a long time for an exchange to survive without losing customer funds to a hack, and that survival is the actual product Kraken is selling. We tested both of its interfaces, the standard app and Kraken Pro, to see whether the fee you pay matches the safety you're buying.
The security record holds up under scrutiny
We did not take Kraken's own claim at face value. Independent security reviews, along with our own search through breach databases and reporting archives, turned up no incident where Kraken customer funds were lost to an external hack. That is a meaningfully different claim than "no incidents at all." In June 2024, security researchers exploited a zero-day bug in Kraken's on-chain withdrawal system and extracted roughly $3 million, but that money came from Kraken's own treasury, not customer balances, and was eventually returned. It is a real security failure worth noting, just not the kind that puts a depositor's coins at risk.
Two incidents in 2025 and 2026 involved people, not code
More recently, a member of Kraken's support team was found to have recorded internal system footage and shared it on a criminal forum, disclosed in February 2025. A second, similar case surfaced in 2026, this time paired with an extortion attempt that Kraken says it refused to pay. In both cases, Kraken states no systems were compromised and no customer funds were at risk. We treat insider incidents as a distinct risk category from external breaches: they say more about internal access controls and vetting than about the platform's technical defenses, and two cases in two years is worth watching rather than dismissing.
