"Connected cars are quickly rising and becoming part of everybody’s life. According to a MarketsandMarkets forecast, this industry will reach $46.69 Billion by 2020. So far so good, but, this evolution comes hand in hand with cyber threats expansion, so, there is only one thing we can do – make sure security comes first." - https://www.rickscloud.com/connected-car-vs-cyberattacks/
Be sure to use an OBD adapter that do not accept unsolicited pairing requests.