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0 pointsDaniel_Newby13y ago0 comments

The blacklist can be compromised, which is a larger vulnerability than having no blacklist.

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4 comments · 2 top-level

toomuchtodo13y ago· 2 in thread

I blacklist is modified, notify me via SMS (the same way Google/Facebook can handle you not able to get into your account).

It's not about modifying; just reading the addresses you don't want to send mails to is informing enough.

Don't display them to the user without two-factor authentication then. Everything can be compromised at some point.

samt13y ago

Save only the hash, or use a data structure like a bloom filter.

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