Can using web-based protocol handlers for protocols such as mailto: links be dangerous in any way?

My question is specifically about an option in Google Chrome under Settings > Site Settings > Handlers. I’ve read in the past that with desktop-based protocol handlers–such as Office Outlook or Thunderbird with mailto: links–an attacker … Continue reading Can using web-based protocol handlers for protocols such as mailto: links be dangerous in any way?

What is the problem with developing secure protocol on top of communication protocol without binding

I read that developing a security layer on top of communication protocol without any binding between them could cause issue like MITM attack. I am having hard time seeing how that could be possible. Can someone shed some light on this.

Ed… Continue reading What is the problem with developing secure protocol on top of communication protocol without binding

Cardholder info transmission between issuing and acquiring banks

Which data is actually transmitted between issuing and acquiring banks during various phases of a card payment transaction?

Specifically, does the Issuer tell the Acquirer any info (and which if any?) not originally acquired from the Card… Continue reading Cardholder info transmission between issuing and acquiring banks