South KoreaTechnology and telecom2025 – ongoingSK Telecom
A-dot Phone AI phishing detection and call protection
SK Telecom reported blocking about 35.62 million phishing and spam calls before connection in Q1 2026
Problem
Phishing callers used impersonation and psychological pressure, making suspicious calls difficult for victims to handle alone.
Approach
SK Telecom offered in-call AI phishing detection from November 2025. It added voiceprint information in March 2026 and guardian notifications in April. Separately, its pre-call AI blocking feature filtered suspected phishing and spam calls.
Results
Takeaway
The blocking volume measured pre-call filtering. It did not establish how many fraud losses in-call detection prevented.
Categories
- Size
- Large enterprise
- Industry
- Technology and telecom
- Business function
- Customer service
- Innovation type
- Product and service innovation
- Adoption
- Built in-house
- Evidence
- Company's own claim
Sources
Source summaries
SK Telecom described operational in-call detection and new guardian alerts. It separately reported about 35.62 million pre-call phishing and spam blocks in Q1 2026.
Full details are in the original sources.