How safe are SPV wallets?

So, as you may know Electrum had an attack back in the day. I'm just curious as to how safe SPV wallets are. It's important because with bigger blocks SPV wallets are more useful. Are there any upcoming innovations with SPV wallets?

submitted by /u/shinyspirtomb
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source https://www.reddit.com/r/btc/comments/gkqfph/how_safe_are_spv_wallets/