Ex-CIA officer John Kiriakou, citing the 2017 Vault 7 leaks, says that phones, cars, TVs and laptops are not as private as we assume.

There was a dramatic leak in 2017 that the CIA came to call the Vault 7 disclosures — gigabytes worth of documents leaked by a CIA technology engineer. What he told us was that the CIA can intercept anything from anyone. They can remotely take control of your car to make you drive off a bridge into a tree to make you kill yourself and make it look like an accident. They can take over your smart television and turn the speaker into a microphone so that they can listen to what’s being said in the room even when the TV is turned off. John Kiriakou

About Vault 7:

Vault 7 is a series of documents that WikiLeaks began to publish on 7 March 2017, detailing the activities and capabilities of the United States Central Intelligence Agency (CIA) to perform electronic surveillance and cyber warfare. The files, dating from 2013 to 2016, include details on the agency’s software capabilities, such as the ability to compromise cars, smart TVs,[1] web browsers including Google Chrome, Microsoft Edge, Mozilla Firefox, and Opera,[2][3] the operating systems of most smartphones including Apple’s iOS and Google’s Android, and computer operating systems including Microsoft Windows, macOS, and Linux.[4][5] A CIA internal audit identified 91 malware tools out of more than 500 tools in use in 2016 being compromised by the release.[6] The tools were developed by the Operations Support Branch of the CIA.[7]

Specifics can be found on WikiLeaks.