Are C# auto-implemented static properties thread-safe?

Question

I would like to know if C# automatically implemented properties, like public static T Prop { get; set; }, are thread-safe or not. Thanks!

Answer 1

It appears not. This is the decompilation with Reflector:

private static string Test
{
    [CompilerGenerated]
    get
    {
        return <Test>k__BackingField;
    }
    [CompilerGenerated]
    set
    {
        <Test>k__BackingField = value;
    }
}