Cybersecurity researchers have discovered severe cryptographic issues in various end-to-end encrypted (E2EE) cloud storage platforms that could be exploited to leak sensitive data.
“The vulnerabilities range in severity: in many cases a malicious server can inject files, tamper with file data, and even gain direct access to plaintext,” ETH Zurich researchers Jonas Hofmann and Kien Tuong Truong
Source:: The Hackers News