A rational actor with a quantum computer capable of breaking Bitcoin would not publicly reveal their ability, as this would crash the asset's price. The smarter strategy is to covertly crack and drain long-dormant wallets, extracting value without destroying the market, making the threat insidious and difficult to detect.

Governments worldwide are stockpiling vast amounts of encrypted data they currently cannot decipher. They are betting that future quantum computers will break today's encryption standards, effectively creating a 'time bomb' that could reveal decades of sensitive global communications and secrets.

The first quantum computer capable of breaking encryption will not enable mass surveillance. It will be highly inefficient, potentially taking months to break a single code. This forces adversaries to choose targets with extreme care, focusing on high-value assets like nuclear codes rather than decrypting everything at once.

The medical industry is ignoring the threat of post-quantum computation. Adversaries are likely capturing encrypted health data today, planning to decrypt it once quantum computers are viable. This creates a hidden, time-sensitive risk that requires a fundamental rethinking of data security now.

New Google research indicates that breaking Bitcoin's encryption requires 20 times fewer quantum resources than previously thought. This revision dramatically accelerates the timeline for a quantum attack to as early as 2029, creating urgent pressure on blockchains to migrate to post-quantum cryptography (PQC) to survive.

The quantum threat to cryptography is an immediate concern. State-level actors are likely already capturing and storing vast amounts of encrypted data today. Their strategy is to hold this data until a sufficiently powerful quantum computer is built that can break current encryption standards, retroactively compromising today's secrets.

David Rosenthal, NVIDIA's first-ever hire, argues that Bitcoin's security premise is vulnerable. He posits that future quantum computers could relatively easily crack the private keys for the roughly 20% of 'lost' or unclaimed Bitcoins, fundamentally undermining the cryptocurrency's claim of being a secure asset.

Unlike binary computers, quantum computers compute on atoms, making them powerful enough to crack any current digital code. This poses an existential threat to systems like banking and Bitcoin, which could lead to societal collapse.

Google Research has revised its timeline for transitioning to post-quantum cryptography (PQC) to 2029. This is driven by new findings that the quantum computing power needed to break crypto wallet encryption is 20 times lower than previously estimated, adding significant urgency for blockchains to migrate to PQC standards.