Mysterious Cipher appeared in my news feed : <p>SMK XKL JVWW JWDTDVQVW DWXCC WV GFY</p>

<p>I have been trying to decipher this for past hours, but I am not anywhere close to finding the solution. I'd appreciate a clue or starting point, or perhaps a spoilery solution if anyone figures it out. This is seriously getting in the way of my productivity!</p>
