Cfir Aguston (@Cfiraguston)

When Floating-Point Failed Catastrophically

Discover how tiny floating-point errors caused major failures, from the Pentium FDIV bug to Ariane 5, Patriot missiles, and the stock market.

2 min readcfiraguston.hashnode.dev

Oct 14, 2025

Oops I goto It Again

A single line of code, goto fail;, broke Apple’s SSL security in 2014. Discover how one small mistake exposed millions of devices to attack.

1 min readcfiraguston.hashnode.dev

Oct 14, 2025

The Car That Would Not Stop

A deadly Toyota crash revealed a hidden software bug that made cars accelerate uncontrollably. Discover how coding errors changed automotive safety.

1 min readcfiraguston.hashnode.dev

Oct 14, 2025

The Forbidden Intel Opcode That Melts CPUs

A single forbidden opcode once froze Intel CPUs worldwide. Learn the story behind the F00F bug and how it reshaped hardware design.

1 min readcfiraguston.hashnode.dev

Oct 14, 2025

Statement Coverage Is Not Enough

Testing is not about numbers, it is about confidence in behavior

2 min readcfiraguston.hashnode.dev

Oct 10, 2025

Cfir Aguston

About

Available for

Cfir Aguston's blogs

When Floating-Point Failed Catastrophically

Oops I goto It Again

The Car That Would Not Stop

The Forbidden Intel Opcode That Melts CPUs

Statement Coverage Is Not Enough

Cfir Aguston

About

Available for

Cfir Aguston's blogs

When Floating-Point Failed Catastrophically

Oops I goto It Again

The Car That Would Not Stop

The Forbidden Intel Opcode That Melts CPUs

Statement Coverage Is Not Enough

Cfir Aguston

About

Available for

Cfir Aguston's blogs

When Floating-Point Failed Catastrophically

Oops I goto It Again

The Car That Would Not Stop

The Forbidden Intel Opcode That Melts CPUs

Statement Coverage Is Not Enough

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Cfir Aguston

About

Available for

Cfir Aguston's blogs

When Floating-Point Failed Catastrophically

Oops I goto It Again

The Car That Would Not Stop

The Forbidden Intel Opcode That Melts CPUs

Statement Coverage Is Not Enough