Can Kraken get hacked?

Could you elaborate on the potential security risks facing Kraken, a cryptocurrency exchange? Are there any historical instances of similar platforms being hacked, and what measures has Kraken implemented to prevent such breaches? Is it realistic to assume that no cryptocurrency exchange is 100% secure, or are there specific factors that make Kraken more or less vulnerable than its competitors? Ultimately, how can users of Kraken minimize their risk of falling victim to a cyberattack?