"A brother from the da'wah group in Israel, said that around 1,000 Yahood have become muslims and majority of them keep it secret. They come and learn then go back to their daily lives.
A few have gone public about it, a few have to flee their families.
I met 5 or 6 of them and none of them have found Islam through da'wah, they did their own research and contacted muslims until they found this group that is giving da'wah in Hebrew."

Allah - there is no deity except Him, the Ever-Living, the Sustainer of existence. He has sent down upon you, [O Muhammad], the Book in truth, confirming what was before it.
And He revealed the Torah and the Gospel before, as guidance for the people. And He revealed the Qur'an.
Indeed, those who disbelieve in the verses of Allah will have a severe punishment, and Allah is exalted in Might, the Owner of Retribution. Ali 'Imran 2-4

Not all of them are alike; a party of the People of the Scripture stand for the right, they recite the verses of Allah during the hours of the night, prostrating themselves in prayer.
They believe in Allah and the Last Day; they enjoin Al-Ma`ruf and forbid Al-Munkar; and they hasten in (all) good works; and they are among the righteous.
And whatever good they do, nothing will be rejected of them; for Allah knows well the Muttaqin (the pious). Ali 'Imran 113-115

Those to whom We gave the Scripture know him (Muhammad sallallahu 'alayhi wa salaam) as they know their own sons. But indeed, a party of them conceal the truth while they know [it]. Al Baqarah 146