bert-micro-cybersecurity

1. Model Details

Model description
"bert-micro-cybersecurity" is a compact transformer model adapted for cybersecurity text classification tasks (e.g., threat detection, incident reports, malicious vs benign content).

• Model type: fine-tuned lightweight BERT variant
• Languages: English & Indonesia
• Finetuned from: boltuix/bert-micro
• Status: Early version — trained on 47.53% of planned data.

Model sources

• Base model: boltuix/bert-micro
• Data: Cybersecurity Data

2. Uses

Direct use

You can use this model to classify cybersecurity-related text — for example, whether a given message, report or log entry indicates malicious intent, abnormal behaviour, or threat presence.

Downstream use

• Embedding extraction for clustering.
• Named Entity Recognition on log or security data.
• Classification of security data.
• Anomaly detection in security logs.
• As part of a pipeline for phishing detection, malicious email filtering, incident triage.
• As a feature extractor feeding a downstream system (e.g., alert-generation, SOC dashboard).

Out-of-scope use

• Not meant for high-stakes automated blocking decisions without human review.
• Not optimized for languages other than English and Indonesian.
• Not tested for non-cybersecurity domains or out-of-distribution data.

Downstream Usecase in Development using this model

• NER on security log, botnet data, and json data.
• Early classification of SIEM alert & events.

3. Bias, Risks, and Limitations

Because the model is based on a small subset (47.53%) of planned data, performance is preliminary and may degrade on unseen or specialized domains (industrial control, IoT logs, foreign language).

• Inherits any biases present in the base model (boltuix/bert-micro) and in the fine-tuning data — e.g., over-representation of certain threat types, vendor or tooling-specific vocabulary.
• Should not be used as sole authority for incident decisions; only as an aid to human analysts.

4. Training Details

Text Processing & Chunking

Since cybersecurity data often contains lengthy alert descriptions and execution logs that exceed BERT's 512 token limit, we implement an overlapping chunking strategy:

• Max sequence length: 512 tokens
• Stride: 32 tokens (overlap between consecutive chunks)
• Chunking behavior: Long texts are split into overlapping segments. For example, with max_length=512 and stride=128, a 1000-token document becomes ~3 chunks with 128-token overlaps, preserving context across boundaries.

Training Hyperparameters

• Base model: boltuix/bert-micro
• Training epochs: 3
• Learning rate: 5e-05
• Batch size: 16
• Weight decay: 0.01
• Warmup ratio: 0.06
• Gradient accumulation steps: 1
• Optimizer: AdamW
• LR scheduler: Linear with warmup

Training Data

• Total database rows: 348,722
• Rows processed (cumulative): 165,761 (47.53%)
• Training date: 2026-04-06 03:08:30

Post-Training Metrics

• Final training loss:
• Rows→Samples ratio: