Indian cyber security experts have raised the alarm bells after reports emerged suggesting that security firm Kryptowire identified a "backdoor" spyware in Android smartphones in the US which collected sensitive personal data and transmitted it to servers in China.

The devices actively transmitted user and device information including text messages, contact lists, call history with full telephone numbers, and unique device identifiers to third-party servers in China without user-consent, Kryptowire claimed.

Shanghai Adups Technology, the Chinese company behind the spyware – or firmware – however admitted that it planted them in some Android phones "by mistake" but the "text messages, contacts or phone logs" were not shared with anyone else.

One of India's top cyber law experts, Pavan Duggal, explained: