VeraCrypt - VeraCrypt is a free open source disk encryption software for Windows, Mac OSX and Linux.
PayPal - PayPal is the faster, safer way to pay online without sharing financial details, send and receive money or accept credit and debit cards as a seller
Kleopatra - Kleopatra is a certificate manager and GUI for GnuPG.
Stripe - Online payment processing for internet businesses. Stripe is a suite of payment APIs that powers commerce for online businesses of all sizes. Use Stripe’s payment platform to accept and process payments online for easy-to-use commerce solutions.
Windows BitLocker - This topic provides a high-level overview of BitLocker, including a list of system requirements, practical applications, and deprecated features.
Braintree - An all-in-one solution to accept, process, and split payments in your mobile app or online - from small business to large enterprise.