The hackers are able to access PC's starting with the phone hacking.
Nope. Sounds to me like a case of someone who thinks they understand security, but actually don't. The article is unnecessarily long and pretty much useless (doesn't outline ways of protecting yourself well, but rather tells us a story). Here are some semi-easy ways for prevention:
1) Do not use your personal phone number for 2FA. Use SIM cards without contracts.
2) Do not use social networks (they aren't for the brightest anyways).
3) Delete anything you can find online about yourself -> effectively kills social engineering attempts.
4) Disable Javascript, Flash and everything else by default.
5) Do not use any web wallets or online services to keep Bitcoin. If you need to keep them on an online device (for whatever reason), at least make sure that you're talking about a local desktop client.
Alternative:
A) Use a different computer solely for Bitcoin, banking et al. (Note: This does not save you from targeted network intrusion, rootkits and similar).
Quoted you to discuss your first and fifth points.
I just wanted to know that if I use my personal phone number (specifically non-contract sim cards), isn't it still on the edge of getting hacked?
And when you said that we should keep our coins in a local desktop client, say if I am using any web wallets like blockchain, so is it not good to have all my coins be kept there?