User Adam Katz

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

3 votes

What are the point of these gibberish comments?

answered Dec 6, 2015 at 22:58

3 votes

Accepted

How secure is socks5 proxy over ssh?

answered Jul 22, 2015 at 18:51

3 votes

How to deal with SMS spam?

answered Jul 24, 2015 at 20:06

3 votes

Is my ISP trying to impersonate google?

answered Jul 10, 2015 at 1:43

3 votes

Break in attempts from secureserver.net

answered May 30, 2015 at 23:17

3 votes

How do I get the thumbprint of an SSH2 public key on windows?

answered Jun 2, 2015 at 0:11

3 votes

Unique(ish) OS / hardware fingerprinting

answered Oct 31, 2016 at 22:06

3 votes

Where can I find a feed of actual spam emails?

answered May 10, 2016 at 18:07

3 votes

Conducting Ethical Phishing Attack

answered Oct 19, 2017 at 18:42

3 votes

Why isn't there a standard to prevent files being attached to e-mails?

answered Oct 19, 2017 at 18:55

3 votes

Do SPF records apply to all subdomains?

answered Feb 16, 2018 at 17:14

3 votes

Best practices for securing SSH access? Is certificate-based VPN server a good solution?

answered Feb 18, 2022 at 1:29

3 votes

Accepted

What is the point of having SPF and DKIM set up, but having DMARC with policy=none?

answered Aug 23, 2021 at 19:04

3 votes

Why isn't there a protocol to exchange PGP keys?

answered Sep 7, 2021 at 15:36

3 votes

I woke up and my email has been signed up to hundreds of online services. How can I fix this?

answered Aug 21, 2020 at 18:03

3 votes

Accepted

Protecting against spoofed email in alias/phrase field

answered Aug 26, 2020 at 16:59

3 votes

Accepted

Is it possible to setup a phishing “honeypot” for proof-of-concept purposes without getting the host/IP blacklisted?

answered Dec 3, 2020 at 17:22

3 votes

Can a spam email full of junk characters be dangerous?

answered Dec 3, 2020 at 22:24

2 votes

Accepted

SPF/DMARC for shared email provider (gmail) - how did this email pass SPF?

answered Dec 21, 2020 at 16:38

2 votes

Accepted

If I leave SPF not set on my domain, is that a factor for email servers to mark emails from this domain as spam?

answered Sep 18, 2020 at 20:03

2 votes

Is the IP address of the client present in the email headers for webmail services and for desktop clients?

answered Sep 18, 2020 at 22:01

2 votes

Font risk in unopened email in inbox

answered Oct 6, 2020 at 21:16

2 votes

Is it insecure to display the number of characters when users enter a new passphrase?

answered Aug 31, 2021 at 16:04

2 votes

Accepted

Password list where a password policy was used

answered Aug 24, 2021 at 18:39

2 votes

Why are there so many special characters in this phishing link?

answered Aug 10, 2021 at 16:50

Stack Exchange Network

174 Answers

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?

What are the point of these gibberish comments?

How secure is socks5 proxy over ssh?

How to deal with SMS spam?

Is my ISP trying to impersonate google?

Break in attempts from secureserver.net

How do I get the thumbprint of an SSH2 public key on windows?

Unique(ish) OS / hardware fingerprinting

Where can I find a feed of actual spam emails?

Conducting Ethical Phishing Attack

Why isn't there a standard to prevent files being attached to e-mails?

Do SPF records apply to all subdomains?

Best practices for securing SSH access? Is certificate-based VPN server a good solution?

What is the point of having SPF and DKIM set up, but having DMARC with policy=none?

Why isn't there a protocol to exchange PGP keys?

I woke up and my email has been signed up to hundreds of online services. How can I fix this?

Protecting against spoofed email in alias/phrase field

Is it possible to setup a phishing “honeypot” for proof-of-concept purposes without getting the host/IP blacklisted?

Can a spam email full of junk characters be dangerous?

SPF/DMARC for shared email provider (gmail) - how did this email pass SPF?

If I leave SPF not set on my domain, is that a factor for email servers to mark emails from this domain as spam?

Is the IP address of the client present in the email headers for webmail services and for desktop clients?

Font risk in unopened email in inbox

Is it insecure to display the number of characters when users enter a new passphrase?

Password list where a password policy was used

Why are there so many special characters in this phishing link?