Sarah Vainstein

Sarah Vainstein

Fintech Innovation Expert
Sarah Vainstein is a fintech expert with a keen interest in banking. She explores various topics, ranging from the impact of digital transformation on traditional banking to the rise of decentralized finance (DeFi). Her analytical approach provides valuable perspectives and guidance on the application of Fintech.
Quantum Computing Threatens Bitcoin and Ethereum Security
Blockchain & Cryptocurrency Quantum Computing Threatens Bitcoin and Ethereum Security

The landscape of cryptocurrency is facing an unprecedented challenge as quantum computing emerges as a formidable force capable of disrupting the very foundations of digital asset security, with Bitcoin (BTC) and Ethereum (ETH), the titans of the crypto world, relying on cryptographic systems that

Can Aave’s iOS App Redefine DeFi for Everyday Users?
Blockchain & Cryptocurrency Can Aave’s iOS App Redefine DeFi for Everyday Users?

Diving into the world of decentralized finance, I'm thrilled to sit down with Kofi Ndaikate, a renowned expert in fintech with deep insights into blockchain, cryptocurrency, and regulatory landscapes. Today, we’re exploring Aave Labs' latest venture—a new iOS savings app designed to bring DeFi to

Fiserv Faces Growth Challenges and Strategic Shifts
Digital Banking & Payments Fiserv Faces Growth Challenges and Strategic Shifts

In the fast-evolving fintech sector, few companies have faced as much scrutiny as Fiserv, a Milwaukee-based payments processor navigating a turbulent landscape of financial setbacks and ambitious pivots. With organic revenue growth forecasts revised downward twice recently and a notable stock price

SentinelOne Unveils AI Cybersecurity Tools with AWS Boost
Regulatory & Compliance SentinelOne Unveils AI Cybersecurity Tools with AWS Boost

In an era where cyber threats evolve at an unprecedented pace, the cybersecurity landscape demands relentless innovation to safeguard digital ecosystems from increasingly sophisticated attacks. SentinelOne, a key player in this high-stakes arena, has recently made waves with the introduction of a

What Are October 2025's Top Fintech Funding Successes?
Trends & Innovation What Are October 2025's Top Fintech Funding Successes?

In a world where digital finance is reshaping economies at lightning speed, October has emerged as a landmark month for fintech funding, with billions of dollars poured into innovative companies, signaling unshakable investor confidence in transforming global financial systems. Picture this: a

How Is Cash App Innovating to Lead in Digital Payments?
Digital Banking & Payments How Is Cash App Innovating to Lead in Digital Payments?

In a world where financial transactions are increasingly digitized, one platform stands out with a staggering statistic: over 50 million active users rely on Cash App for their daily money needs, making it a household name. This digital wallet, owned by Block, headquartered in Oakland, California,

Can Stoa Redefine Savings with Rewards Over Interest?
Trends & Innovation Can Stoa Redefine Savings with Rewards Over Interest?

In a financial landscape where an estimated £614 billion of idle savings sits dormant in the UK alone, a pressing question emerges: how can individuals and small businesses make their excess cash work harder for them in today’s economy? Traditional interest-bearing accounts often fail to inspire

How Does Finmo-Standard Chartered Redefine Treasury Solutions?
Digital Banking & Payments How Does Finmo-Standard Chartered Redefine Treasury Solutions?

What happens when the complexities of managing global finances collide with cutting-edge innovation? Picture a multinational corporation struggling to track cash flows across five countries, juggling multiple bank portals, and losing hours to manual currency conversions. This scenario, all too

State Street Acquires PriceStats for Real-Time Data Boost
Trends & Innovation State Street Acquires PriceStats for Real-Time Data Boost

Setting the Context: Real-Time Data as a Financial Imperative In an era where economic tides can turn in mere hours, the financial sector is racing to harness real-time data for sharper decision-making, and State Street, a heavyweight in investment management with $5.4 trillion in assets under its

How Will Constantinople and Paymentology Transform Australian BaaS?
Digital Banking & Payments How Will Constantinople and Paymentology Transform Australian BaaS?

In a rapidly evolving financial landscape, Australia stands at the forefront of digital payment adoption, with card usage and contactless transactions soaring among a tech-savvy population. Amid this surge, a groundbreaking partnership between Sydney-based fintech innovator Constantinople and

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