With its advantages of end-to-end encryption, strong privacy attributes, and high penetration in Europe, America and Southeast Asia, Signal has become a private channel for high-net-worth customers, foreign trade, and cross-border projects. However, extensive number expansion has multiple industry problems:
There are many impurities in the number pool, and the proportion of valid Signal accounts is extremely low.
Invalid operations can easily trigger platform risk control, and accounts are frequently restricted and banned.
Multiple marketing resources are seriously wasted, and the production ratio continues to decline.
Manual verification is inefficient and cannot support large-scale customer acquisitions
Blind mass messaging increases overseas privacy compliance risks
