User Adam Katz

1 vote

How does this app "hash" their passwords with MD5, but still know the plain-text?

answered Mar 8 at 16:25

1 vote

Ubuntu vs. Debian SSH public key login

answered Sep 7, 2022 at 17:51

1 vote

Flattening an SPF record - drawbacks and downsides?

answered Aug 18, 2022 at 18:25

1 vote

Is a ptr mechanism in an SPF record secure?

answered Aug 18, 2022 at 19:03

1 vote

What should I do if I want to unsubscribe from what might be spam?

answered Nov 2, 2022 at 15:26

1 vote

Is OK to accept multibyte unicode codepoints as recipient address for Sendmail and Postfix?

answered Jul 18 at 18:50

1 vote

how is strength of password calculated from standard keyboard patterns?

answered Nov 24, 2015 at 20:53

1 vote

How to secure shared user on build server?

answered Mar 24, 2016 at 1:40

1 vote

Accepted

Does verifying an additional fraction of a file decrease the chances of collision?

answered Mar 24, 2016 at 2:32

1 vote

Questions regarding Rakshasa

answered Jul 24, 2015 at 22:58

1 vote

Accepted

For which time-frame should we assume quantum computers?

answered Jul 11, 2015 at 1:53

1 vote

Accepted

What type of hash is this MD4(MD4(($pass)).(strtolower($username)))

answered Jul 9, 2015 at 21:39

1 vote

Accepted

Detect SSH InBound / Oubound Connections

answered Jul 10, 2015 at 1:55

1 vote

Image steganography and tracking

answered Mar 26, 2015 at 16:53

1 vote

How to handle disk encryption for remote connection?

answered Jun 2, 2015 at 1:56

1 vote

Are there any two way + two factor authentication systems in use?

answered Jun 2, 2015 at 5:13

1 vote

Accepted

How to identify the phishing email originates from a compromised account or a compromised server?

answered Apr 10, 2020 at 16:52

1 vote

How to determine if a scanner finding a virus in my email is a false positive?

answered Apr 13, 2020 at 19:12

1 vote

Accepted

How can I as middleman verify whether a phishing site is valid if the scam listens only on the referrer link and blocks any other access methods?

answered Sep 24, 2019 at 19:14

1 vote

Failed to send emails that I never sent

answered Jul 15, 2019 at 19:32

1 vote

Bots trying to spoof encoded email links, but why?

answered Nov 14, 2018 at 19:29

1 vote

Prove a received mail came from a company email when company is tampering on their side

answered May 28, 2019 at 16:27

1 vote

Hidden service security SSH

answered May 24, 2016 at 1:32

1 vote

How to verify personal information (identity)?

answered Jun 30, 2016 at 3:05

1 vote

Can a custom return path make SPF redundant

answered Sep 25, 2018 at 18:19

1 vote

Evaluating spam score for a single page application

answered Dec 4, 2017 at 21:05

1 vote

Accepted

relationship between anti-spam solutions and whois databases

answered Jun 2, 2017 at 23:33

1 vote

Accepted

Is it possible somebody could have edited my known_hosts file to connect to malicious servers?

answered Oct 11, 2021 at 15:51

1 vote

Vulnerability : Missing SPF - is this a scam?

answered Oct 11, 2021 at 16:05

1 vote

What is the entropy of a password made from the initial letters from an English sentence

answered Nov 16, 2021 at 23:57

Stack Exchange Network

174 Answers

How does this app "hash" their passwords with MD5, but still know the plain-text?

Ubuntu vs. Debian SSH public key login

Flattening an SPF record - drawbacks and downsides?

Is a ptr mechanism in an SPF record secure?

What should I do if I want to unsubscribe from what might be spam?

Is OK to accept multibyte unicode codepoints as recipient address for Sendmail and Postfix?

how is strength of password calculated from standard keyboard patterns?

How to secure shared user on build server?

Does verifying an additional fraction of a file decrease the chances of collision?

Questions regarding Rakshasa

For which time-frame should we assume quantum computers?

What type of hash is this MD4(MD4(($pass)).(strtolower($username)))

Detect SSH InBound / Oubound Connections

Image steganography and tracking

How to handle disk encryption for remote connection?

Are there any two way + two factor authentication systems in use?

How to identify the phishing email originates from a compromised account or a compromised server?

How to determine if a scanner finding a virus in my email is a false positive?

How can I as middleman verify whether a phishing site is valid if the scam listens only on the referrer link and blocks any other access methods?

Failed to send emails that I never sent

Bots trying to spoof encoded email links, but why?

Prove a received mail came from a company email when company is tampering on their side

Hidden service security SSH

How to verify personal information (identity)?

Can a custom return path make SPF redundant

Evaluating spam score for a single page application

relationship between anti-spam solutions and whois databases

Is it possible somebody could have edited my known_hosts file to connect to malicious servers?

Vulnerability : Missing SPF - is this a scam?

What is the entropy of a password made from the initial letters from an English sentence