Fledgling blockchain startup IOTA has ran into yet another technical issue. Researcher Joseph Rebstock has detailed a vulnerability in its network which makes users susceptible to replay attacks – a common exploit vector in which valid data is erroneously repeated in order to steal cryptocurrency from users. The issues stems from a function related to IOTA’s choice to use one-time signatures when processing transactions on the Tangle – the company’s self-proclaimed “next-generation†blockchain technology which promises more efficient transactions and scalability. “Reattaching is often required to get a transaction through and bundles can only be safely signed a single time,†the…
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