I was reading a news article saying that bitcoins will not be safe once we have powerful quantum computers. Is there a good alternative way to store bitcoins safely in such a situation ?
It’s just another FUD spread by people who don’t like Bitcoin.
No need to worry too much about quantum computers yet because they are still far from being a real threat ,least 50 years before they’re powerful enough to break Bitcoin or any other cryptography. Also, quantum computers aren’t just a threat to Bitcoin, they could affect the entire financial system, banks, Visa, Mastercard, and others since they all use cryptography. That’s why serious experts are working on this and developing quantum-resistant algorithms alongside the progress of quantum computers. Bitcoin and other systems will be upgraded when the time comes , probably in about 50 years.
Honestly, it’s best to just ignore this kind of FUD. Quantum computers are nowhere near a real threat to Bitcoin anytime soon.