Preparing for the Quantum Age: When Cryptography Breaks

US-China Technology CompetitionHouse Oversight and Government Reform Subcommittee on Cybersecurity, Information Technology, and Government Innovation · June 24, 2025 · 119th Congress
The Subcommittee on Cybersecurity, Information Technology, and Government Innovation held this hearing to examine how quantum computing threatens current encryption standards and to review federal progress implementing the 2022 Quantum Computing Cybersecurity Preparedness Act. Begins at ▶ 0:03:06
Transcript
Highlights

Title

Preparing federal systems and the workforce for the quantum computing era

Purpose

The Subcommittee on Cybersecurity, Information Technology, and Government Innovation held this hearing to examine how quantum computing threatens current encryption standards and to review federal progress implementing the 2022 Quantum Computing Cybersecurity Preparedness Act. Witnesses from IBM, GAO, Qrypt, and Brown University discussed "harvest now, decrypt later" threats from adversaries, the state of postquantum cryptography (PQC) standards, and the effects of proposed federal research funding cuts on the US quantum workforce. Begins at▶ 0:03:06

Who spoke

• Chairwoman Nancy Mace (R-SC)▶ 0:03:06: Opened by explaining quantum computing basics and noting a 2023 McKinsey report projecting the quantum market could exceed $100 billion by 2040▶ 0:04:04; cited her Quantum Computing Cybersecurity Preparedness Act signed into law in December 2022▶ 0:05:05, and later led questioning on federal PQC migration progress and what "keeps witnesses up at night"▶ 1:53:47.

• Ranking Member Shontel Brown (D-OH)▶ 0:05:57: Highlighted her bipartisan Electronic Consent Accountability Act with Mace▶ 0:05:57; warned of "steal now, decrypt later" attacks by China and Russia▶ 0:07:11; criticized Trump administration cuts of $700 million to NSF grants and $879 million to STEM education grants, and a proposed NSF budget cut of more than half▶ 0:10:28; later questioned witnesses on workforce funding and federal research dependence▶ 2:10:08.

• Dr. Scott Crowder, IBM Quantum Adoption VP▶ 0:12:47: Said IBM operates over 80 quantum systems and is building what it believes will be the world's first large-scale fault-tolerant quantum computer in Poughkeepsie, NY, by 2029, 20,000 times more complex than today's systems▶ 0:15:19; estimated a cryptographically relevant quantum computer could arrive around 2030–2035▶ 2:22:58.

• Ms. Marisol Cruz Cain, GAO Director of IT and Cybersecurity▶ 0:17:34: Testified GAO found the federal government lacks a comprehensive national quantum strategy, with no risk assessment for federal agencies (unlike critical infrastructure) and no assigned roles/responsibilities▶ 0:21:03; recommended the Office of the National Cyber Director (ONCD) lead strategy coordination▶ 0:21:29; later noted OMB's implementation review is still in early stages▶ 1:54:11.

• Mr. Denis Mandich, Qrypt CTO▶ 0:22:25: Described the Salt Typhoon breach compromising nine major telecom networks as proof adversaries already harvest encrypted data▶ 0:23:13; called quantum decryption a "white swan," not a black swan, event▶ 0:23:42; warned the government relies on a single PQC algorithm for data encryption with no backup▶ 1:56:53; said China is likely ahead and staying silent, concentrating quantum research in Anhui Province▶ 1:58:15.

• Dr. Brenda Rubenstein, Brown University▶ 0:27:35: Said proposed cuts would reduce NSF's budget 57% overall and 85% for physics▶ 0:31:20; warned basic-research cuts are causing top students to abandon physics careers▶ 0:32:07; testified roughly 1,000–2,000 of Brown's ~8,000 students are international▶ 2:07:59.

• Rep. Jimmy Gomez (D-CA) (unidentified by name in transcript but addressed as "Mr." after Mandich Q&A)▶ 2:00:10: Asked about ramifications of quantum-broken encryption for Bitcoin and national security, and pressed on ONCD leadership qualifications, expressing concern the current nominee lacks cyber/quantum expertise▶ 2:04:05.

• Rep. Eli Crane (R-AZ)▶ 2:05:02: Questioned Dr. Rubenstein on foreign-student vetting at Brown, noting the university relies on federal law rather than its own vetting▶ 2:06:28; asked Mandich about Chinese students being used as intelligence collection platforms▶ 2:08:23.

• Rep. (Brown, second recognition)▶ 2:10:08: (Ranking Member Brown's second round) Asked about Congress's nearly $2 billion investment in quantum resilience R&D and workforce development needs▶ 2:10:32.

• A committee member ("Mr. Burlison")▶ 2:15:35: Asked Crowder about IBM's superconducting-qubit approach versus photonic computing▶ 2:15:35; asked Rubenstein about quantum applications in drug binding research▶ 2:18:03; asked Mandich about US competitive advantages versus new entrants like PsiQuantum▶ 2:19:03.

• Rep. (introduced as "Mr. Magcguire"/McGuire)▶ 2:20:15: Noted 2023 US private quantum investment was roughly 10x China's▶ 2:20:42; asked all witnesses yes/no whether quantum poses a national security threat▶ 2:20:42; asked about legacy IT systems' added risk under quantum threats▶ 2:24:45.

Key moments

• Mace noted the Quantum Computing Cybersecurity Preparedness Act, which she led with Rep. Khanna, was signed into law in December 2022 and requires federal migration planning to postquantum cryptography▶ 0:05:05.

• Brown said proposed cuts include $700 million from NSF grants and $879 million from STEM education grants, with the administration's budget seeking to cut NSF funding by more than half▶ 0:10:28.

• Cruz Cain testified GAO's 2024 report found no comprehensive federal quantum strategy, no federal-agency risk assessment (unlike one done for critical infrastructure), and recommended ONCD lead coordination▶ 0:21:03▶ 0:21:29.

• Mandich said the Salt Typhoon breach compromising nine telecom backbone networks proves adversaries already have "pervasive access" to encrypted data, and called the arrival of cryptographically relevant quantum computers a "white swan," not black swan, event—inevitable, only the timing unknown▶ 0:23:13▶ 0:23:42.

• Rubenstein said proposed NSF cuts would total 57% overall and 85% for physics specifically, and described a top student ("Lindau Nobel laureate") considering leaving physics for lack of job prospects▶ 0:31:20▶ 0:32:07.

• Mandich warned the government relies on a single standardized algorithm for actual data encryption among the three NIST-approved PQC standards, with "no backup plan" if it fails▶ 1:56:53.

• Asked what keeps them up at night, Cruz Cain cited harvest-now-decrypt-later and funding cuts▶ 1:56:03; Mandich cited uncertainty over whether China is already ahead▶ 1:56:26; Rubenstein cited erosion of the US-trained talent pool▶ 1:57:20.

• Cruz Cain confirmed that a cryptographically relevant quantum computer could theoretically break Bitcoin's encryption, and Mandich said this would let a holder "calculate the largest Bitcoin wallet," rendering the currency's value zero with no regulatory recourse▶ 2:01:03▶ 2:02:25.

• Rep. Crane pressed Rubenstein on whether Brown vets international students beyond following federal law; she acknowledged the university does not independently vet students and estimated 1,000–2,000 of Brown's roughly 8,000 students are international▶ 2:06:28▶ 2:07:59.

• Mandich said no US quantum company—including IBM and Google—built its technology without foundational research from national labs and universities, citing Microsoft's new topological-qubit chip as reliant on Oak Ridge, Los Alamos, and NIST research▶ 2:19:45.

Metadata

CommitteeHouse Oversight and Government Reform Subcommittee on Cybersecurity, Information Technology, and Government Innovation
Chamber / CongressHouse · 119th Congress
DateJune 24, 2025
TypeHearing
Witnesses
Dr. Scott Crowder — Vice President, IBM Quantum Adoption
Ms. Marisol Cruz Cain — Director, Information Technology and Cybersecurity, U.S. Government Accountability Office
Mr. Denis Mandich — Chief Technology Officer, Qrypt
Dr. Brenda Rubenstein — Associate Professor of Chemistry and Physics, Brown University
Videoyoutube
Transcript140 caption blocks · 11,024 words · 2:25:53 runtime
EventCongress.gov 118418