This text maps the history of debate on the authenticity of Plato's or pseudo-Plato's Alcibiades I. The first doubts were raised by Friedrich Schleiermacher at the beginning of nineteenth century and the debate became vigorous again after Denyeris and Pradeau-Marboeufis attempts to argue for Plato's authorship couple of years ago. The author discusses several particular points raised against the authenticity (lexical, literary, stylistic and philosophical problems) and he will show that none of them stands on its own. Further, when taken together these points do not prove the dialogue to be a bogus work. The debate, he concludes, is open; however the tendency in the last decade is in favour of Plato's authorship rather than against it.