most CS “textbooks” are a scam these days I’m general. a huge red flag when I scan resumes now is actually if they have a textbook published without some sort of advanced degree or qualification to write a textbook. I get resumes of people a year out of college, work a junior position, and have a “Advanced JavaScript” or “JavaScript the not boring way” or “Complete guide to typescript” or some other quirky textbook name. if you actually click into any of these books, they’re complete nonsense written by somebody who just copied another textbook from another idiot who knew nothing. all these people are over confident resume padders. in practice they don’t know shit and didn’t legitimately write a lick of the book. I’ve had some of these applicants claim their books are used by professors too.
you literally described the exact use case for password managers. in security, it’s not about IF you get breached, it’s WHEN and how to recover from it. this includes cloud password managers. you can hack all the data you want from these companies but any reputable password manager company will employ a Zero Trust model where your data is stored encrypted. they can completely upend the company and destroy their whole infrastructure, but they still can’t do shit unless they have your master pass or a time machine.