A new study by HP finds that the devices and networks making up the “Internet of Things” often lack common security features, leaving them and possibly your home open to attack. The company’s researchers looked at 10 unnamed devices, ranging from home alarms to thermostats and garage door openers. Few required strong passwords, allowing simple ones like “1234” that are often the first hackers try when attempting to gain access. Others fell prey to simple hacks like cross-site scripting, as well as others that are unsophisticated enough that they can be automated. And seven out of the 10 didn’t encrypt some traffic, be it local or with the Internet.