Bitcoin’s (BTC) long‑running debate over the quantum computing threat has flared again after Blockstream CEO Adam Back used Paris Blockchain Week to argue for optional, opt‑in upgrades instead of forcibly freezing old wallets. “Preparation is much safer than hasty responses in a crisis,” Back said, insisting that the network should build quantum‑resistant paths now while preserving user choice and property rights.

Back described today’s quantum computers as “essentially lab experiments” and noted he has followed the field for more than 25 years, during which progress has been “incremental,” but warned that Bitcoin cannot afford to wait until a real‑world break occurs. He also pushed back on calls to lock down coins by protocol fiat, arguing that the Bitcoin community has shown it can coordinate under pressure and that “bugs have been identified and fixed within hours” in past emergencies.

Back’s comments directly contrast with BIP‑361, “Post‑Quantum Migration and Legacy Signature Sunset,” a proposal from Jameson Lopp and five co‑authors that would gradually phase out quantum‑vulnerable outputs and ultimately freeze unmigrated coins. The draft, which builds on BIP‑360’s soft‑fork framework, introduces a quantum‑resistant output type and targets early formats such as pay‑to‑public‑key (P2PK) addresses that expose public keys on‑chain.

Estimates cited by CoinMarketCap and other publications say roughly 1.7 million BTC — about 34% of total supply, including Satoshi Nakamoto’s early holdings valued around $70–$80 billion at current prices — still sit in quantum‑exposed address types. Under BIP‑361’s three‑phase schedule, Phase A would begin three years after activation and ban new payments to legacy addresses, while still allowing spending from them.

Five years after activation, Phase B would go further by rendering old ECDSA and Schnorr signatures invalid, meaning any coins that had not been migrated to quantum‑resistant outputs would be effectively frozen on the network. Lopp and co‑authors frame this as necessary to prevent “intergenerational theft” by a future quantum adversary and to avoid a scenario where an attacker can seize dormant wallets and crash trust in Bitcoin’s fixed‑supply narrative.

Back and other critics counter that deliberately freezing coins crosses a red line for decentralization and censorship resistance, amounting to protocol‑level expropriation even if done in the name of security. They argue that Bitcoin has historically relied on social consensus and voluntary upgrades, and that the community should instead focus on offering robust quantum‑safe options, education and incentives so users migrate out of genuine self‑interest rather than under threat of losing control over their funds.

In previous crypto.news coverage of protocol‑level governance battles and hard‑fork debates, similar tensions have surfaced between risk‑mitigation schemes and the movement’s founding principles, from block‑size wars to taproot activation. The quantum fight, now centered on BIP‑361 and Back’s rival vision of optional defenses, is shaping up as the next major test of how far Bitcoiners are willing to go to “save” the network without breaking what made it attractive in the first place.

Bitcoin Cash and Polkadot show mixed trends, driving interest in early-stage projects like BlockDAG amid shifting market sentiment.

Price action across major crypto names is starting to feel uneven again as traders reassess Bitcoin Cash price prediction and where range-bound assets may move next. 

Bitcoin Cash continues to react within broader cycle bands where upside attempts often fade into consolidation rather than sustained trends. Interest around Polkadot is also shaped by its interoperability model, keeping Polkadot price prediction tied closely to how quickly cross-chain demand actually materializes.

That uncertainty is pushing attention toward earlier positioning opportunities. The question of what crypto to buy now is becoming more frequent as liquidity searches for asymmetric setups. BlockDAG (BDAG) is drawing focus with its $0.000000726 entry window tightening ahead of its BingX listing. Exchange expansion and staged rollout plans are building momentum around a phase that is still open, but narrowing fast.

Bitcoin Cash $350–$700 range drives cyclical movement

Bitcoin Cash price prediction is often based on long-term market behavior rather than rapid structural change. Bitcoin Cash has historically traded within broad zones that reflect its cycle-driven nature. Recent ranges have generally stayed between about $350 and $500. Stronger market phases have pushed it toward $600 to $700 before cooling back into consolidation.

The Bitcoin Cash price prediction outlook is shaped by liquidity conditions and overall crypto sentiment. Trading activity tends to slow during risk-off periods and expand when market demand increases. Price movement is also influenced by transaction usage trends and broader Bitcoin-related cycles. Market participants often watch these ranges to understand whether the asset is stabilizing or preparing for another directional move within its established structure over time.

Polkadot price prediction signals low range stability

Polkadot price prediction is largely shaped by how its interoperability framework evolves under real network usage. Polkadot has recently shown price movement clustered in lower single-digit ranges, generally fluctuating between about $1.10 and $1.80 in current market conditions. These levels reflect ongoing consolidation after broader cycle declines rather than directional expansion.

The Polkadot price prediction outlook depends on parachain activity, validator participation, and cross-chain demand across connected networks. Price behavior often remains compressed during periods of lower ecosystem activity. Movement tends to expand when network usage increases or when broader crypto liquidity improves. 

Forecast models for 2026 continue to place expectations within similar low-range structures, suggesting gradual shifts rather than sharp breakouts under current conditions. Market direction remains closely linked to adoption pace and overall sentiment across interoperability-focused assets in the sector.

BlockDAG $0.000000726 window tightens as BingX listing goes live

BlockDAG is entering a decisive phase where attention is tightening around its current pricing window and upcoming exchange expansion. The $0.000000726 level is being positioned as a final fixed entry zone before broader market pricing takes over. This stage is increasingly defined by timing rather than speculation, as participants assess how quickly access may shift once listings expand further.

The live BingX listing marks the first major catalyst in this sequence, with additional Tier 1 exchange integrations expected to follow in quick succession. Each new listing adds visibility and reduces friction for entry, which naturally compresses the available accumulation window. That compression is becoming the central focus for those tracking momentum shifts across early-stage assets.

BlockDAG is also being discussed through the lens of asymmetric upside potential, with projections referencing a 195x scenario tied to early positioning. This framing is driving heightened attention around allocation timing rather than long-term waiting strategies. The narrative is no longer about discovery. It is about how much of the remaining supply is accessible before broader demand discovery begins.

The phrase what crypto to buy now is increasingly being shaped by this environment, where early access windows are narrowing while exchange coverage expands. BlockDAG sits directly in that intersection, where timing and availability are beginning to separate early participants from later entrants.

As additional exchanges go live and ecosystem phases progress through late April and beyond, the current pricing structure continues to tighten. Once supply transitions fully into open market conditions, price discovery is expected to shift rapidly.

In summary

BlockDAG is increasingly dominating attention as its $0.000000726 entry window tightens ahead of expanding exchange listings. The new BingX launch signals the beginning of wider Tier 1 exposure, with more listings expected to follow soon. Supply remains fixed while access continues to narrow, intensifying focus on early positioning. In this environment, what crypto to buy now becomes a timing question, and BlockDAG’s accelerating listing cycle and shrinking entry window continue to define urgency as market access moves toward open trading conditions.

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Ukrainian authorities have arrested a member of an international cybercrime network wanted by the FBI over allegations of fraud and money laundering tied to losses exceeding $100 million across the United States and Europe.

The suspect was arrested in the Transcarpathia region during a joint operation involving the National Police of Ukraine and other internal security units, Ukraine police said on Thursday. Officials said the man had been wanted internationally for some time and was eventually found in Uzhhorod, where he was living under a fake identity using forged documents.

“He issued fictitious documents about his own death and continued to live in Ukraine as a “new” person, using false documents,” prosecutors said, adding that he laundered illicit proceeds through property acquisitions, often using relatives as intermediaries to disguise ownership and financial flows.

The suspect was part of a wider cyber syndicate that deployed malicious software to harvest personal data and corporate records, later using that information to extort victims by demanding payments in exchange for silence or the return of stolen material, per the announcement. The scheme targeted individuals and institutions in both the US and Europe.

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Ukraine seizes $3 million in crypto

During the investigation, authorities seized assets worth approximately $11 million, including cash, real estate, vehicles and cryptocurrency valued at around $3 million.

Officials also flagged discrepancies between declared income and assets held by the suspect associates, pointing to tens of millions of Ukrainian hryvnias in unexplained wealth accumulation. Investigators say the financial trail helped reconstruct parts of the laundering network and confirm the scale of the operation. They also identified two additional accomplices linked to the laundering operation.

The suspect faces charges under Ukrainian criminal code provisions covering document forgery and money laundering. His alleged accomplices have also been charged and remain in custody.

Related: Ukraine blocks Polymarket, classifies prediction markets as gambling

Ukraine uncovers more hacker groups

Earlier this year, Ukraine, the United States and Germany uncovered another transnational hacking group responsible for blocking the systems of at least 11 American corporations and demanding ransom payments in cryptocurrency. Prosecutor General Ruslan Kravchenko said the attacks caused an estimated $1.5 million in damage, with the group consisting of more than 20 members, including seven based in Ukraine.

Authorities carried out searches at the homes of two Ukrainian suspects, seizing computers, phones, cash and documents. One suspect was also linked to the spread of BlackBasta malware.

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