We tested the most popular crypto currency mobile apps from Google Play for common vulnerabilities and weaknesses. Almost every week a new crypto currency exchange is compromised, causing multi-million losses to people who entrusted their coins to the exchange. Fraudsters leverage a new trend of ICO (discouraged by the European Securities and Markets Authority), gather quick cash from nave investors and disappear just after. The total number of crypto currency applications in Google Play designed to store, process or trade crypto currencies has exceeded two thousand and continues to grow. The most popular vulnerabilities are (from OWASP Top 10): Improper Platform Usage, Improper Cryptography and Insecure Data Storage.”]
Source: https://informationsecuritybuzz.com/study-research/secure-popular-crypto-currencies-mobile-apps/