Below are our twitter guidelines:
No, tweets are not secure. For your own security please do not include personal account information in tweets or direct messages. If you have questions about your account or services we offer please contact us directly. Hargreaves Lansdown's tweets can be identified by our Twitter handle, @HLInvest.
Our Twitter account is monitored Monday to Friday, 8:30am - 5pm. Hargreaves Lansdown is not affiliated with Twitter and has no responsibility for its operations, privacy or security; or for any third party Twitter applications connected with it.
Tweets from staff do not necessarily reflect HL views & retweets are not an endorsement and our tweets are for UK persons only.
Hargreaves Lansdown's privacy notice
Twitter's privacy and security policies