User Adam Katz

255 votes

Accepted

What are ssh-keygen best practices?

answered Nov 30, 2016 at 22:17

84 votes

Accepted

New Hires get phishing emails very quickly - Reasoning and how to stop

answered Aug 19, 2020 at 19:09

68 votes

Accepted

Password rules: Should I disallow "leetspeak" dictionary passwords like XKCD's Tr0ub4dor&3

answered Jul 10, 2015 at 20:10

64 votes

Is it safe to store account credentials in an Excel sheet protected with a password?

answered Mar 8, 2022 at 21:42

62 votes

Why use random characters in passwords?

answered Dec 1, 2021 at 23:49

41 votes

How to prove my Gmail has been hacked?

answered Jul 9, 2015 at 20:57

27 votes

Reply to potentially spoofed email

answered Aug 17, 2020 at 15:41

26 votes

Is email scraping still a thing for spammers

answered Feb 27 at 18:02

22 votes

Why is my internal IP address (private) visible from the Internet?

answered Jul 25, 2015 at 1:54

22 votes

What is the purpose of these weird non-spam emails?

answered Aug 3, 2015 at 20:17

20 votes

Accepted

Does it really improve a password if at least one character of each group (a-z,A-Z,0-9) is included?

answered Nov 29, 2016 at 21:02

15 votes

Accepted

Could antivirus programs not just scan all files upon creation?

answered Mar 26, 2015 at 0:48

14 votes

What is the purpose of a targeted email without any meaningful content?

answered Mar 2, 2021 at 18:27

13 votes

What is the point of gibberish spam

answered Mar 28, 2015 at 2:19

10 votes

Can a website steal passwords saved in my browser?

answered Oct 13, 2020 at 14:18

10 votes

Why are passwords generated by a password generator a complicated mix of letters and numbers instead of a long phrase?

answered Nov 15, 2021 at 17:42

10 votes

Accepted

Can DMARC's SPF alignment be spoofed?

answered Aug 15, 2022 at 16:25

8 votes

Accepted

Why removing just one letter form passwords makes it 20x easier to break according to zxcvbn test

answered Dec 15, 2022 at 18:46

7 votes

Why are PIN codes usually of even length (4 or 6)?

answered Aug 5, 2022 at 17:21

7 votes

What to include in emails to make them acceptable to email servers?

answered Aug 19, 2020 at 18:37

6 votes

How are spammers using LinkedIn "http://linkedin.com/slink?code=..." URLs?

answered May 24, 2016 at 0:03

6 votes

Password rules: Should I disallow "leetspeak" dictionary passwords like XKCD's Tr0ub4dor&3

answered Jul 10, 2015 at 18:40

5 votes

Running SSH on a different port vs adding the port number to a password

answered Mar 24, 2016 at 1:21

5 votes

Accepted

Does Mozilla Thunderbird leak any personally identifying data?

answered Oct 6, 2016 at 23:05

4 votes

What are the dangers of a mailto link?

answered Jul 31, 2020 at 18:08

4 votes

Why can't spoofed caller ID's be identified?

answered Apr 2, 2020 at 20:22

4 votes

Accepted

Weird character sequence in email subject

answered Jul 14, 2019 at 21:57

4 votes

When should user invite links (tokens) expire?

answered Apr 2, 2020 at 17:41

4 votes

Storing a user's password in a retrievable manner

answered Mar 16, 2016 at 20:48

4 votes

Hashcash, is this really used?

answered Mar 22, 2016 at 2:35

Stack Exchange Network

169 Answers

What are ssh-keygen best practices?

New Hires get phishing emails very quickly - Reasoning and how to stop

Password rules: Should I disallow "leetspeak" dictionary passwords like XKCD's Tr0ub4dor&3

Is it safe to store account credentials in an Excel sheet protected with a password?

Why use random characters in passwords?

How to prove my Gmail has been hacked?

Reply to potentially spoofed email

Is email scraping still a thing for spammers

Why is my internal IP address (private) visible from the Internet?

What is the purpose of these weird non-spam emails?

Does it really improve a password if at least one character of each group (a-z,A-Z,0-9) is included?

Could antivirus programs not just scan all files upon creation?

What is the purpose of a targeted email without any meaningful content?

What is the point of gibberish spam

Can a website steal passwords saved in my browser?

Why are passwords generated by a password generator a complicated mix of letters and numbers instead of a long phrase?

Can DMARC's SPF alignment be spoofed?

Why removing just one letter form passwords makes it 20x easier to break according to zxcvbn test

Why are PIN codes usually of even length (4 or 6)?

What to include in emails to make them acceptable to email servers?

How are spammers using LinkedIn "http://linkedin.com/slink?code=..." URLs?

Password rules: Should I disallow "leetspeak" dictionary passwords like XKCD's Tr0ub4dor&3

Running SSH on a different port vs adding the port number to a password

Does Mozilla Thunderbird leak any personally identifying data?

What are the dangers of a mailto link?

Why can't spoofed caller ID's be identified?

Weird character sequence in email subject

When should user invite links (tokens) expire?

Storing a user's password in a retrievable manner

Hashcash, is this really used?