Created in November 2011 by ThomasVoegtlin, it is a lite wallet, which means it does not download blockchain, so there are no setup delays and it is always up to date.
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Pros
Seed's secure hold, which will be used to retrieve or access our wallet.
The start times are instantaneous because it works in conjunction with high-performance servers that handle the most complicated parts of the Bitcoin system.
Electrum allows you to create and sign raw transactions directly from the user interface using a form.
It features Two-Factor Authentication (2FA) which is a way to add additional security to the wallet.