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Strategic insights on blockchain, AI, security, leadership, and career in an age of disruption.

AI Voice Phishing: Why Your Defenses Face the Wrong Direction
September 04, 2026·7 min read
AI

AI Voice Phishing: Why Your Defenses Face the Wrong Direction

AI voice-cloning has fundamentally reversed phishing attacks—now criminals call employees impersonating trusted leaders, exploiting help desk processes instead of technical vulnerabilities.

Recent Essays

#blockchain security

118 posts

Key Management: Securing Your Digital Kingdom
June 26, 2024

Key Management: Securing Your Digital Kingdom

In our last post, we took a deep dive into the world of secure key generation. Today, we're going to take the next step and explore the crucial topic of key management.

The Importance of Secure Key Generation
June 25, 2024

The Importance of Secure Key Generation

In our last post, we explored the intriguing world of key generation and how it forms the foundation of your unique blockchain identity. Today, we're going to dive deeper into a crucial aspect of t...

Key Generation: Creating Your Blockchain Identity
June 24, 2024

Key Generation: Creating Your Blockchain Identity

In the last post, we explored the fascinating world of public and private keys—the digital locks and keys of the blockchain. Now, let's take a deeper dive into key generation, the process of creati...

Public and Private Keys: The Locks and Keys of the Blockchain
June 23, 2024

Public and Private Keys: The Locks and Keys of the Blockchain

Let's talk about a core concept in blockchain technology: public and private keys. � These digital locks and keys are essential for securing transactions and protecting your digital assets.

The Benefits of Multi-Signature Transactions
June 22, 2024

The Benefits of Multi-Signature Transactions

In our last post, we took a quick look at multi-signature transactions and how they can boost security and accountability in the world of blockchain. Today, we're gonna dive a little deeper and exp...

Multi-Signature Wallet Security | Enterprise Risk Management & Vulnerability Assessment Guide
June 21, 2024

Multi-Signature Wallet Security | Enterprise Risk Management & Vulnerability Assessment Guide

Comprehensive enterprise guide to multi-signature wallet security, implementation best practices, and vulnerability assessment frameworks for digital asset protection.

Multi-Signature Transactions: Enhancing Security and Accountability in Blockchain
June 21, 2024Opinion

Multi-Signature Transactions: Enhancing Security and Accountability in Blockchain

As a seasoned expert in blockchain technology and digital assets, I've witnessed firsthand the transformative power of multi-signature transactions in bolstering security and fostering trust among ...

The Importance of Secure Digital Signatures: Safeguarding Your Blockchain Journey
June 20, 2024Opinion

The Importance of Secure Digital Signatures: Safeguarding Your Blockchain Journey

In our last post, we explored the fascinating world of ECDSA, a cutting-edge digital signature algorithm that's transforming the way we conduct blockchain transactions. Today, I want to take a step...

Unlocking the Power of ECDSA: Your Key to Secure Blockchain Transactions
June 19, 2024

Unlocking the Power of ECDSA: Your Key to Secure Blockchain Transactions

In our previous post, we explored the world of digital signatures and their role in proving ownership. Today, we're diving deeper into a specific digital signature algorithm: the Elliptic Curve Dig...

ECDSA Blockchain Security | Enterprise Cryptographic Implementation & Vulnerability Assessment Guide
June 19, 2024

ECDSA Blockchain Security | Enterprise Cryptographic Implementation & Vulnerability Assessment Guide

Comprehensive enterprise guide to ECDSA security implementation, vulnerability assessment, and cryptographic best practices for blockchain systems. Expert security audit framework.

Blockchain Digital Signatures Security | Enterprise Authentication & Ownership Verification Guide
June 18, 2024

Blockchain Digital Signatures Security | Enterprise Authentication & Ownership Verification Guide

Comprehensive enterprise guide to blockchain digital signatures security, authentication frameworks, and ownership verification. Expert vulnerability assessment for digital asset protection.

Unlocking the Power of Input and Output in Blockchain Transactions
June 13, 2024

Unlocking the Power of Input and Output in Blockchain Transactions

Hello, blockchain enthusiasts! I'm excited to dive deeper into the world of blockchain transactions and explore the crucial concepts of input and output. Understanding these components is essential...

Blog — Blockchain, AI & Leadership Strategy | Jay Schulman