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I am building an electron or angular (not sure yet) application integrated with web3. I will be using a parity node and infura as a fallback node to communicate with the blockchain. I will be generating/importing keystore files. With keythereum and electron I can load these files and extract the private key with a password to sign transactions that I can send to the nodes.

The private key is exposed while signing the transaction. Is there a security issue?

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