# Updates on HEIR, the homomorphic encryption compiler project

DevFeed: [Updates on HEIR, the homomorphic encryption compiler project](<https://devfeed.tech/articles/updates-on-heir-the-homomorphic-encryption-compiler-project-40496.md>)

Original publisher: [Read original article](<https://www.jeremykun.com/2026/09/04/updates-on-heir-homomorphic-encryption/>)

Published: 2026-09-04T18:53:40Z

Content type: article

Language: en

Sources: [Jeremy Kun](<https://devfeed.tech/sources/jeremy-kun.md>)

Topics: [homomorphic encryption](<https://devfeed.tech/topics/homomorphic-encryption.md>), [Compiler](<https://devfeed.tech/topics/compiler.md>), [Encryption](<https://devfeed.tech/topics/encryption.md>), [Cryptography](<https://devfeed.tech/topics/cryptography.md>), [Machine learning](<https://devfeed.tech/topics/machine-learning.md>), [Inference](<https://devfeed.tech/topics/inference.md>), [GitHub](<https://devfeed.tech/topics/github.md>), [bazel](<https://devfeed.tech/topics/bazel.md>), [Kaggle](<https://devfeed.tech/topics/kaggle.md>)

Tags: [bazel](<https://devfeed.tech/tags/bazel.md>), [ckks](<https://devfeed.tech/tags/ckks.md>), [compiler](<https://devfeed.tech/tags/compiler.md>), [cryptography](<https://devfeed.tech/tags/cryptography.md>), [encryption](<https://devfeed.tech/tags/encryption.md>), [github](<https://devfeed.tech/tags/github.md>), [homomorphic-encryption](<https://devfeed.tech/tags/homomorphic-encryption.md>), [inference](<https://devfeed.tech/tags/inference.md>), [kaggle](<https://devfeed.tech/tags/kaggle.md>), [mathematics](<https://devfeed.tech/tags/mathematics.md>), [ml](<https://devfeed.tech/tags/ml.md>), [programming](<https://devfeed.tech/tags/programming.md>)

## AI overview

This companion article explains HEIR, a homomorphic encryption compiler that converts programs to operate directly on encrypted data. It discusses compiling pre-trained machine-learning models for private inference, describes the repository and setup, and reports an example involving encrypted credit-card fraud detection.

## Source excerpt

On 2026-08-14 I published an article on the Google Security blog with an update on HEIR, our homomorphic encryption (HE) compiler. This is a companion article, in which I have no limits on word count or jargon, and I can feel free to be honest. So strap in. Assuming you won't read the linked corporate blog post, HEIR is a compiler that converts an input program to a program that operates directly on encrypted data.