Thanks for your comment it gave me a lot of thoughts like: “Why did I think that my blackberry was secure (or more secure than other phones)?”
TLDR: I couldn’t find the answer but I think it’s because they were the first major smartphone and had a encrypted messaging app.
Here’s a few sources for further reading.
Obligatory Wikipedia Overview: https://en.m.wikipedia.org/wiki/BlackBerry_Limited
Blackberry had early smartphones and went all in on keyboard phones:
https://d3.harvard.edu/platform-digit/submission/the-rise-and-fall-and-rise-again-of-blackberry/
Sorry I couldn’t have been more helpful, but hopefully this gives you a good starting point.
Here’s the summary for the wikipedia article you mentioned in your comment:
BlackBerry Limited (formerly Research In Motion) is a Canadian software company specializing in cybersecurity. Founded in 1984, it originally developed the BlackBerry brand of interactive pagers, smartphones and tablets. In 2016, it transitioned to a cybersecurity enterprise software and services company under CEO John S. Chen. Its products are used by various businesses, car manufacturers, and government agencies to prevent hacking and ransomware attacks. They include the BlackBerry Cylance, the QNX real-time operating system; BlackBerry Enterprise Server (BlackBerry Unified Endpoint Manager), and a Unified Endpoint Management (UEM) platform.
